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.
I would but I made the mistake of giving a foldable a try (got myself a used Samsung Fold 4 for $400). I got too used to having a tablet in my pocket and now I can’t go back.
Problem is that foldables are still niche and a fold with an IR blaster is even more niche. Doubt that any exist but I’d love to be proven wrong.
Apparently my honour V3 fold has one. Have yet to try it though