I don't have a TV for this reason. My room mate uses her phone/laptop to watch things and listen to music, but she does it quietly with her door shut. I do the same thing with my phone, but it's quieter this way. Plus having the doors shut makes a huge difference at home. I will never live with anyone else because people are so noisy.

I have headphones that I wear in public (not always, just if it gets very noisy). If it starts to bother me anyway, I just find the nearest restroom and take a break. Restrooms are always quiet.