The lower resolution and lower data rate of much FTA video, lowers quality.
However, it also lets you make DVDs with more episodes on 'em.
(this is without re-encoding, a time-killing task)
I used to burn many episodes of shows broadcast in 544x480 @ around two megabits per second.
Half hour shows are 22 minutes without commercials. Hour shows are 42 minutes without.
I've since moved on, and can't remember the exact numbers, but I believe it was around 3 hours of video per disc.
That would easily be four one-hour shows per disc. (and maybe 8..9 half-hour shows)
Your mileage would vary, depending on the original source material and running time.
At my cost of under 25¢ per DVD, I always found it very attractive.
An alternative solution I used several years ago, was based on some 40/60/80 gigabyte portable USB drives.
The 8 gigabyte thumb drive was just too small to bother with.
The Western Digital drives were self-contained, and powered by the USB connector, and were made with 2½ inch laptop drives.
I'd picked them up surplus to strip-out the hard drives for some old laptops, but that project got canceled.
At the time, I plugged them into a Philips DVD player, which had a USB port, and that was my poor-man's media center.
You record on your back-room computer now, so you could examine and play with the video to determine resolution, etc.
Here's
MediaInfo, a free program that will dump more specs than you want to know. -