So I have my 75 gallon set up in my house, directly across from our 47" TV... There is one fish (a big blue Ahli) that comes to the front corner of the tank, and stays there, whenever the TV is on... It's so funny!
My fish watch me all the time. They are pretty nosy about what I'm doing. Sometimes I catch them watching the dog but she doesn't seem to hold their interest for long