Mine has the TV tuner which is worthless these days.
Those are total garbage. I have several in my Macs, and the quality is horrid.
They appear to sample the TV signal at 320x240, so the result is really blocky. You can eliminate static with a good antenna or analog cable service, but you can't get rid of the blockiness.
The ATA on the 6500 isn't that great (ata/33 I think), but usable. I run 7.6.1 on mine I think or 8.1. Mine has the TV tuner which is worthless these days.
I don't think it's even ATA/33. I think it's the older 16 MB stuff. The stock 4 GB hard drive in a Power Mac 6500 is slow as hell though. Almost any newer drive will be faster and speed up the 6500 significantly.