What to do about this friend? leave it?

I understand your frustration about this. I have friends and family members who put TV before people and it drives me mad too. To be honest I don't think there is anything you can do. I know this isn't very helpful but I don't think she is going to change and I don't think you telling her how you feel is going to make her change either. She is the only person who can change or recognise the fact that she needs people not just books and TV. I have to end by saying again that I know exactly how frustrating this can be.