Lol, Some tricks require you to process image data during HBlanks to get it to work right, and yets, you need to know some about TVs, or VBlanks and HBlanks wouldn't make sense to you, lol. I mean, Programming for the SNES is retarded, you do EVERYTHING. There's a reason there are so few SNES homebrew games :/
I tried learning, but it's just so damn time consuming, and hard that it's just not worth it. Plus there are so many limitations on what's possible :/
When I realized how much work needed to go into making even like, pong, I just went "Jesus fuck, I'm not doing that!"