Box on TV

I would like to get a new cable box for our main TV. That is the only box we have in the house. Whenever I try to turn the TV on, the box will not turn on. I've changed batteries in my remote and checked everything I could. Most of the time I have to turn off the power completely to the entire set up, and turn it back on and wait for the cable to start up again. The box is fairly old and I really don't want to continue doing this. Would you please send someone out with a new box? Thank you so much for your help with this.