Here's a lesson in trying out new technologies, especially one that reaches the consumer:
My brother and I bought my parents a TV with a CableCARD. It's pretty neat: you get digital channels without a seperate cable box and remote, while paying less in fees. However, support for the CableCARD is lacking. Neither the TV manufacturer or cable provider seem to have much experience with it. they squabble and blame each other.
At least my parents were lucky: it was very clear the TV was at fault - the TV software/firmware kept locking up and crashing the TV. Eventually, we returned the TV and got another one from a different manufacturer.