Nobody plans to spend a film looking at their phone. It happens anyway, and the numbers on it have stopped being embarrassing and started being structural.
eMarketer’s forecast, cited by MNTN Research in January and updated in April, puts nearly two-thirds of US social network users on a second screen while watching TV during 2026. Not occasionally. Actively, as part of how the viewing works.
For a long time the industry read that as a failure of attention. It looks more like a relocation of the part of watching that used to happen in the room.
What the Second Screen Is Actually For
It Is Mostly Other People
Strip out the shopping and the idle scrolling and a large share of second-screen activity is conversation about the thing on the first screen. Reaction threads, group chats, the message you send four minutes into an episode that just says “ok wait.”
That behavior is not new. Watching with commentary is the oldest way people have consumed anything. What changed is that the people you want to comment to are no longer in the room, because appointment viewing collapsed and everyone is on a different episode.
And Partly Commerce Now
The commercial side has grown faster than most broadcasters expected. MNTN’s figures put 34 percent of US TV viewers as having bought merchandise or apparel inspired by something they watched, and 31 percent as having shopped through QR codes or in-show links.
That is a meaningful second revenue surface, and it exists because the phone is already in the viewer’s hand. Which is the same reason the social layer ended up there.
Why Simultaneous Viewing Broke
Streaming solved availability and destroyed synchrony as a side effect.
When four channels existed and an episode aired once, everyone you knew watched it at the same time whether they wanted to or not. The conversation the next morning was possible because the shared experience was enforced by scheduling.
Release-all-at-once ended that. Now a group of five friends are somewhere across eight episodes, three of them are behind, one finished last Tuesday and has been holding a spoiler in for a week. Coordinating a shared watch takes more organization than the watch itself.
Text absorbed the difference badly. A group chat about a show is asynchronous by nature, so it either spoils people or dies waiting for the slowest viewer. Neither is what watching with someone felt like.
What Actually Replaces the Room
Does Co-Viewing Software Solve It?
Partly. Synchronized playback tools exist and have for years. They handle the mechanical problem, which is keeping two streams at the same timestamp, and they mostly handle it fine.
What they handle less well is the part that made co-viewing worth doing. Sitting with someone through a film involves silence, half-attention, the noise somebody makes at a bad line. Text alongside synchronized playback captures the reaction but drops everything unspoken, which is a surprising amount of what is going on.
Voice and Video Do the Rest
The formats that get closest are the ones carrying tone. A call running alongside a stream reproduces something much nearer the couch than a chat window does, because it includes the pauses.
Consumer platforms have been drifting this way for years, whether that is a voice channel, a creator livestream or a live girls random video call, and none of it was built for co-viewing specifically. It just turns out that live audio with a picture attached is a decent approximation of company.
What This Means If You Make Things
Three practical implications, none of which require a new platform:
- Assume the second screen exists and design for it, because two thirds of the audience has one active and pretending otherwise means competing with it rather than using it
- Simultaneity is a feature worth manufacturing deliberately, which is part of why weekly episode releases keep coming back despite binge being more convenient
- The social layer will sit wherever the audience already talks, not wherever the platform built a comment box
That last point costs the most money to learn. Broadcasters and streamers have repeatedly built in-app social features and repeatedly watched the conversation happen elsewhere anyway, because the audience’s existing group chat has all their friends in it and the app’s comment section does not.
The Bit Nobody Says
There is a slightly deflating conclusion available here, which is that the second screen is not a decline in attention so much as evidence that watching alone was never the goal.
People spent decades watching things with other people in the room. When that stopped being logistically possible, they reconstructed it out of whatever was available, which turned out to be a phone. The behavior looks like distraction and functions like company.
Whether the next version of it is text, voice or video probably depends less on the technology than on how much of the unspoken part people decide they miss.
