So the audio issues have ceased. I took the HDMI thing out and stuck it in a different HDMI port, and now I don't notice the audio problems anymore. So maybe the previous port is glitchy, or maybe the cord wasn't in it properly.
I've got something new going on though. My DVD player is hooked up through the component inputs. Whenever I'm watching an anime, the show will play fine for a bit, but then the TV screen will randomly turn black and the sound will go away, and then the box that reads "Component 720p etc. etc." pops up again, and then the picture returns. This all happens in a split second. As if I'd just switched input modes and switched back even though I didn't.
I tried keeping the batteries out of the remote in case it was sending the TV false signals. That didn't work. I took the cables out and stuck them back in. That didn't work. I didn't have this problem in the past, so I know the DVD player isn't at fault.
I tried searching google, but nobody had the same problem as me. Or if they did, I don't know how to find it because I don't know the correct term for it. Some people's input problems are along the line of "My input screen keeps flashing." or "My TV has frozen.", but nothing like "The screen turns black momentarily, displays input status, and then returns to normal randomly." If there's a proper term for this kind of problem, I don't know what that term is.
Anybody else ever experience this before?
And why the fuck am I always the one who gets random obscure tech problems nobody's ever heard of or has a cure for anyway? This kind of issue shouldn't even be possible. I mean look at my thread record: Hundreds of topics about obscure tech issues, many of which would take an obsessive-compulsive to even notice.
EDIT: Thankfully a pattern has been determined. Now I just need to figure out the cause.