Well, all hidef material is REC709, so a wider gamut than that is wasted anyway if watching commercial releases.
CRT was capable of very rich reds, the NSTC system did have a knobbled colour system compared to PAL though. Some CRT projectors had trouble with Red, especially Sony projectors, NEC projectors gave gorgeous reds and very nice skintones. An NEC XG CRT projector is still my preferred way to watch a big screen movie.
A well calibrated CRT TV hit the primaries pretty well, so red should look pretty red.
PAL releases sometimes weren't calibrated properly, NTSC Red is a pinky-purple on PAL, any Atari owners in PAL territory probably wondered why games set on Mars were always pink!
A calibrated PAL release tends to have better colour than an NTSC release, but sometimes the releases were sloppy or were conversions and the colours were way off.
If you want a good read about it, then plow through this:
http://www.ece.rochester.edu/~gsharma/papers/lcdvscrtprocieee.pdf