You know why I1 are showing this though, don't you. During last Xmas, B2 showed
"It Started With Swap Shop"
which lasted about 2 hours, and it included the classic Swap Shop opening sequence. Noel Edmonds, John Craven and other presenters were on it. Did you see that? I did. How it brought back memories.
So it's only natural then, that six months on, I1 should show a tribute programme to its rival Saturday morning kids' show of the time, TISWAS (Today Is Saturday, What A Surprise!). Actually I think TISWAS started about a year before Swap Shop, albeit in the ATV region only, it was a couple years later before TISWAS spread to other I1 franchise areas (Westward, HTV, LWT, Anglia et al).
Better still, I actually saw it in colour on my 10 and a half year old Mitsubishi colour TV. When I was a kid I only ever saw the ATV "In Colour" ident in monochrome at the start of programmes (TISWAS, Crossroads, The Muppet Show et al), as we only had a black and white Ferguson Courier portable at the time.