Time Warner Cable Sucks!! pt 3

Today is the 17th. I received my replacement cable box on the 11th. On the 14th, I had no cable channels, only broadcast tv channels. Yes, 3 days after the new box, it had to be reset. This morning, I turned to Excercise TV on demand so I can do my morning Yoga.....this is the screen I encountered............................
I tried to get any on demand exercise........got the same message. So, I called the evil Time Warner Cable again. The technician said it would be fixed in 24 to 48 hours. 24 to 48 hours????
I explained to him that this was a new cable box that I received less than a week ago and I've already had two separate problems with it, in less than a week! He had no intelligent response. I asked for a new box. He hesitated, then finally gave me an appointment for the 21st.
I've googled this box, and apparently it's the worst HD cable box available! Why would a cable company continue to use a box that is constantly causing problems???? And why is it that I have to pay $150+ a month for sub par cable/internet service in the greatest city in the world??? Oh wait, I forgot, THERE IS NO OTHER SERVICE AVAILABLE TO ME...........(sorry for the shouting).