Source: https://bsky.app/profile/funnysnarkyjoke.bsky.social/post/3lmkfwebeuc27
In fact you can use your smartphone to change the channel on nearly any TV. In the comments on that post some people talk about how to do it. Basically you need a smartphone with either builtin IR or use a USB-C IR blaster or if your phone has a 3.5mm headphone jack you can also try one of those but I’m not sure if the 3.5mm ones are as commonly supported.
Instead of the TV-B-Gone, there should be a TV-1-Channel-Up device that just changes the channel. If the TV in the doctor’s office turns off, it will get noticed by the reception desk and probably be turned back on in a few minutes. If the TV is on a different channel, the desk is much less likely to notice any time soon (at least not before you’ve been called back into the exam room).
TVs at my local doctors office took the prescription commercials to a new level and now just run an ad feed all day.