ask yourself this question...
if it had a tuner, would you use it? if yes, then return it and grab a LG or panasonic which is more money...but has a tuner.
if your answer is no, then it is nothing to worry about.
I just purchased a JVC DR-MV78B DVD/VCR Recorder from a shopping network. What few reviews I have found on it makes it sound like a pretty good one. However, my concern is that it does not have a tuner. I assumed it would have. Is that a good or a bad feature? Any pros or cons would be helpful.