Is this question for the Sims 4? Because you can definitely do some of those things. I don't think you can watch tv (because you're not studying while you're watching) and there isn't an option to just listen to tv. However, you can talk with other sims while doing homework. You can also listen to music (and drink/snack) while studying (whether it's a stereo or earbuds). You can eat and listen to music while working on assignments (term papers, etc.) on your computer.
If it's not working for you it might be because of proximity - meaning the stereo or person you want to talk to must be close by.