Thanks for all the replies. Him and I don't watch TV much though, and we do play with her, but the TV is always on even when we are. I have a daughter myself, 6 1/2 months now, and I don't plan on letting her become like my step-daughter. I don't see why they would've let that happen in the first place, but I guess things happen.
She lives most of the time with her mother, so she has the most influence on her life right now.