This modern montage video for Get It On (Bang a Gong) comes from Japan, and is a little weird... but with HD sound quality.
Telegram Sam below is a favorite of mine, with stylized Chuck Berry riffs, a primary element of the T-Rex sound I remember hearing on AM radio when I was ten. It was with Sweet and all the other poppy early 70s bands like Rasberries that introduced me to rock n roll music on my little Philco transistor radio... and on K-Tel records:
T-Rex: Get It On- 1971
T-Rex: Telegram Sam- 1972