I don't think directv has anything to do with your PS3 not showing on your TV.. first you should try to hook it up to a different HDMI input, then you could try a different hdmi cable and lastely try it on a different TV (with HDMI).
It's probably a HDMI problem (maybe there was some kind of damage to it), so if you hook it up with the composite cable you should have a picture, but ofcourse that's not a good solution as you'd get pretty bad picture quality - another possibility why it doesn't work would be that you might not have switched the TV to the correct input source, but I don't think that's the case here.







