A: With a few exceptions, sales of TV shows and movies on DVD and Blu-ray have been declining ... And I still have a VCR! Q: There was a trio of shows (I believe they were on NBC) in the early ...

Although both devices can record a TV program, the DVD recorder is like a VCR that can record onto an unlimited number of optical media. A DVR, on the other hand, has a built-in hard drive with a ...