And for the record, I am not going to rip on artists that lipsync on stage on a TV show because there is only so much you can do with gear, space, etc... especially for a rock band. I've seen MANY artists, both rock and pop, who lipsync on TV. NOt all do, but many have.
I do excuse that (maybe that makes me a hypocrite), but I also am not expected to pay $100-300 for a ticket to watch them lipsync on TV. When I go to a stadium or arena, I (personally) want to see them do what they are paid to do, which is perform. For me, that means to give 100% in both a stage show as wel as actually performing (vocals, instruments, etc)... and not faking their way through it.