I am not using any sort of a switch box. Just white/red audio cables, and an s-video cable. I'm unsure if there is any sort of way to adjust for these kind of settings; I grabbed this TV for free from someone I know. I'll definitely be picking up a much better CRT in the future when I'm out of college.
I can try testing it on my dinky HDTV later!
Thanks for the insight! Yeah, I don't think I want to try to adjust for those sort of settings (even if I could) for fear of going down a path I couldn't undo and really screwing things up. I mean I barely notice these imperfections as it is, so aiming to go from 95% to 100% might drop me down to 50% satisfaction, or worse.
I'll definitely be picking up a rounded CRT in the future, but for now, alas, this is what I've got. I'll check the brightness and see if that helps at all.
Thanks everyone, appreciate the advice as always!