I'll admit they were pretty bad, but don't let it tarnish your memory........for one, every band has a bad live show sometimes, even when they're young and fresh, they just were unlucky that it was on TV. Secondly and I mean this so sincerely....without Keith and John it was not The Who, so your memory of The Who is safe and sound. We can't expect a 65 year old man, known for belting, to sound as he did when he was 27......it would be like watching a football player at 30 years after his prime.
As for a good half time performance...... Radiohead sounds like a surewin. I think, since they're getting into the Rock & Roll Hall of Fame, Genesis should reconnect and tour, all five members.....and maybe play the Bowl, though they're probably not big enough, at least their prog material worth watching is not big enough