20 June – Archie MacPherson commentates his last football match for BBC Scotland with the Scotland v Brazil World Cup match in Italy. Brazil won 1-0, leaving Scotland eliminated from the finals.
15 October – BBC1 launches a new weekday morning service called Daytime UK.[3] Linked live from Birmingham and running for four hours, from 8.50am until lunchtime, the new service includes hourly Scottish news summaries, broadcast after the on-the-hour network news bulletins.
November
November – The Broadcasting Act 1990 receives Royal Assent. The Act paves the way for the deregulation of the British commercial broadcasting industry, and will have many consequences for the ITV system.[4][5]
December
No events.
Unknown
Scottish Television introduces a supplementary ident adding to the ITV generic logo. It features several circles rolling in over the thistle and falling over as one to reveal the name Scottish Television.
Debuts
BBC2
18 September – Over the Moon with Mr Boon (1990–1996)