I always liked this RD clip
Cool! That guy is doing the Entwistle right-hand technique! (One of them, anyway.) I don't see too many people besides me trying that.
Speaking of which... I haven't turned up any live Who vids from the brief Thunderbird period (roughly 1972 I think) but here's a nice Fenderbird bit... with Quadrophenia backing tapes galore... and Keith on vocals :-]
Some of the least trebly live Entwistle tone I've heard.
I like those Jack C basses too.