This is a case study in how to lose a 20 year customer in 5 months. We have lot's of TV's. High def, analog, giant projectors, and little TV's. Comcast can't correct problems we've had for a year or more. #1) We only get 3/4 of a picture on all our PBS channels, many History channel programs, CSPAN, ESPN, and National geo. It is NOT our TV and multiple tech's scratch heads and give up. #2) The Black convertor boxes are not well built. we've been through at least 12. Several wouldn't give us full... read full review »