Your mother seems to be trying to find sensitive spots to pick at. Believe it or not, moms are good at that. You'd think they wouldn't do it, but they spent so much time, while we were younger, finding ways to push us into suitable behaviours, it's second nature to them. They generally stop when they accept us as adults. But some don't get to that stage. (IE, They don't actually grow up themselves!!)
You could do what I do, for diffrent reasons, and just stop watching TV. It'so boring anyway.