If you are buying a VCR for the tuner, see if you can get one with a QAM tuner also. This should give you access to the free HD content on the cable. Both my LCD TV's and my PC have QAM tuners and I get my local stations in HD.
I was getting some on-demand movie channel, but it's gone now.
NTSC = the old analog broadcasting method and cable channels 1-125(?)
ATSC = the new digital over the air broadcasting method
Qam = cable digital broadcasting method