How can two TVs at home be considered IPTV? The secondary set-top box requires monthly rent, and many people don't know which is the cheapest option

the day the bedroom TV was hung on the wall, I remembered something: there was only one set-top box, installed in the living room. The bedroom unit wants to watch live streams, so you can't just carry the box back and forth. I called 10,000 to ask around, then went to the service center, and checked every possible road. I found it was far more than just "buying another box"—some roads required monthly rent, some cost nothing, and some were completely inaccessible. This article lays out the numbers and shows you the calculation.

clarify first: IPTV is tied to a box, not to your home

many people's first reaction is to buy a set-top box online and connect it. At first, I thought the same thing—on Taobao, custom telecom boxes cost dozens of yuan and a bunch of them. Before buying, understand the carrier's authentication system—it can save you a few dozen yuan.

carriers' IPTV has two : the first is hardware authentication. The data center records the MAC address and SN serial number of your device, and verifies its identity before powering on; The second step is business authentication, verifying whether the IPTV account in the box and your broadband are the same account. You have to pass both to make the live stream list. That's why self-purchased boxes are basically unusable—their SN has never entered the ITMS management platform, and the first door is blocked.

here's another fun fact: if you move the same telecom box to someone else's home, you won't be able to view it, because it's bound to your own broadband account. My cousin picked up a colleague's retired box and took it home. When he plugged it into the IPTV port, it got stuck and couldn't get into the boot screen. That's the reason. So for the 'second-hand box' route, unless the seller rebinds with you in the same carrier's backend (most regions don't offer it), don't waste time.

Route 1: Install a secondary set-top box with the carrier. How should monthly rental bills be calculated

this is the most authentic path. Calling 10000 and saying, "The second TV at home needs to be installed with an IPTV," customer service will quote the price: in most provinces, 10~30 yuan per month . Telecom IPTV rates are generally 30 yuan/month, including box and on-site installation, but integrated plan users generally get discounts. In some places, you can rent a second unit for free for just 100 yuan for testing, but China Unicom has a precedent of 130 yuan per year. In short: the price difference is huge. must first state your package tier before asking about the . Just ask, "Is there a discount for adding a second unit to my package?" It's the same change the package—if you don't ask, you'll be charged the original price.

my mother-in-law's fusion package, adding a second unit costs 10 yuan/month. The old lady loved watching opera channels in her bedroom. At 120 yuan a year, she felt it was worth it, and that was enough. Here's how it works: If your second TV can't be used three times a month, spending 120 yuan per year to buy an annual membership for a video app might be more cost-effective; If the elderly watch every day, the money is well spent.

a practical issue when wiring: the optical modem usually has only one IPTV port on the back. How do you connect the two boxes? Two methods. First, when the installer arrived, he had the second network port designated as IPTV (available in some areas); Second, spend about a hundred yuan to buy a VLAN-compatible switch, using one cable to bring both broadband and two IPTV channels. I've written a detailed tutorial on single-line multiplexing plus VLAN division . You can find on how to choose a switch. If your router is a Xiaomi device, first check if the backend has an IPTV switch. The path is hidden in the advanced settings , which can save a switch.

a reminder: the secondary set-top box is also the carrier's asset, not sold to you. If you dismantle or close the account later, return it together. Don't lose the remote control or power cord. I accompanied my mother-in-law to handle the cancellation and dismantling the counter checked everything according to the list.

Route 2: IPTV soft terminal, just call and you can open it, costing nothing

I think this is the path most worth asking about first, but unfortunately, few people know about it. IPTV soft terminal simply put, it's about putting a set-top box into the TV—your smart TV can be installed directly with the ISP's official IPTV app, and you can log in to your broadband account to watch live and replay. Physical boxes are completely eliminated.

Shanghai Telecom launched this service citywide at the end of 2023, offering 4K quality. Cloud broadband users can simply install an "IPTV" app on their matching smart TVs. The activation method is ridiculously simple: call number 10,000, clearly state "activate the IPTV soft terminal included with the broadband package," and the customer service backend can complete it in about a minute. Other provinces have varying progress; some have followed suit, some have not. So the first step is always to call and ask, "Do we support IPTV soft terminals here?"

two prerequisites must be met: first, the TV must be a supported partner model (just call customer service to report the TV model and you can check); Second, the TV must be networked. Note a technical detail: the soft terminal uses your own broadband channel, unlike set-top boxes which use independent IPTV multicast channels. Therefore, they take up of the home bandwidth—watching Yilu 4K live streaming consumes about 20 Mbps. If your home broadband is already limited, first check how many Mbps your home has enough broadband before deciding For TV internet connection, it's recommended to plug in a network cable or connect to a 5G band. If your WiFi password is incorrect, check the optical modem's WiFi password change article.

Method 3: Casting via mobile app—free but not available on certain channels

if your province doesn't have a soft terminal, there's a semi-official solution: China Telecom's mobile video app (Tianyi Ultra HD, called different in some provinces), which has a 'TV Station' section and lets you watch over 30 live channels. Using the data from the telecom SIM card, it still doesn't have data usage. When watching, tap the TV icon on the screen, select a TV connected to the same WiFi, and you can cast it on.

I tested this road as a backup bedroom plan for a week and learned three truths: First, the number of channels is fewer than set-top boxes, with basically all central and provincial stations, but no local small channels or 4K zones; Second, some channels will prompt "Casting prohibited" when casting is clicked, which is a restriction from the content copyright holder and cannot be bypassed; Third, the stability of screen casting depends on the home WiFi situation. If the bedroom signal is weak, address coverage first before watching TV. I've written quite a bit about router placement and mesh setup. Qualified as a backup, barely able to be a main force.

Route 4: Don't mess with IPTV at all, install live streaming apps on USB drives, and honestly

last point, some people will definitely say: just install a third-party live streaming app on your TV. Copy the USB drive, install the package, and upload it to Dangbei Market, then install the live streaming software—it really works. But to be honest, I can't recommend this path to the elders: the live stream source can be taken down at will, the channel that can be watched today will circulate tomorrow, switching sources and apps is commonplace, and elderly people simply can't handle it. The picture quality is also heavily compressed, which is not the same as IPTV's dedicated live broadcasts.

Who is this path suitable for? Perfect for occasional Xinwen Lianbo or scenarios where you don't care about picture quality. To consistently watch live streams, it's better to return to the first three paths.

four routes were assigned accordingly, and I ended up choosing the one I chose last

put the four roads together in a table, and it's clear at a glance:

my own choice: I first called 10000 and asked about the software terminal. We don't currently support installing apps on TVs here. In the end, I added a set-top box, 10 yuan/month, so I bought a bedroom for 120 yuan a year to lie in bed and change channels—worth it. The same path my mother-in-law's family walked. If you're planning to install a second TV, my suggestion is: call the soft terminal (free, so you won't lose out), and if that doesn't work, ask about the secondary set-top box discount (quote the package tier). If neither is suitable, just cast your screen as a backup.

also has a timing issue: if it's a new broadband installation, the installer should clearly explain the second TV on the day they visit, have them debug together, and during inspection, both TVs should be on the live streaming list for a few minutes before signing off on the HD channel. This is much faster than submitting the bill separately afterward. On the day of installation, I made a checklist of what should be inspected. Also, families who have switched to bridging should note that before switching to the dynamic modem WAN connection table, make sure to copy the IPTV VLAN. Otherwise, the TV will go black and it can be a hassle. This firefighting experience is detailed in the IPTV rescue after bridging.