[ardourdev]

Unfortunately that is incorrect. You need a TV license even if you only watch foreign broadcasts: https://www.tvlicensing.co.uk/faqs/FAQ16

[midasuni]

Commmunications act 2003 sec 368 specifies it applies to television programmes

A Tim Dodd livestream of a spacex launch, or Potato McWhisky live-streaming a civ6 session is not a television programme.

(If they were they would be subject to various ofcom rules)