tv68 Quiz Time! Where was this studio? (No audio)

Where do you think this studio was? There may be a clue on the curtains! This was recorded from an ITN bulletin at the end of 1987 and is mute (because I must have muted over it with the Audio Dub feature on our video!)

[@ColmORourke1981]

Plymouth, namely the 'Today' studio - the pattern on the curtains are the green 'hills' of the TSW logo.

[@tv68uk]

I wondered if it was from the continuity studio... and if that curtain had ever been seen behind the announcer?