I hadda turn off my a/c. I was having some kind of electrical power issues (the a/c would stop, and then go back on... I noticed one of my power strips, which has a light on it indicating power, was turning "off".)
Dunno if it's a brownout (the tv picture didn't shrink and the p.c. wasn't affected) but I'm afraid of an electrical fire, so to be safe I turned the a/c off. The temperature in my bedroom went up at least 20° in the last 30 minutes.