It's curious you should think this - I also have impressions of B/W children's programs in the early 60's where I was certain that things had certain colours. Only recently have I come to realise that Fireball XL5 and Supercar were definitely B/W. The odd thing is, I see colour stills of these programs, and the colours I see match my impressions of the colours I thought I saw on the screen. Eh?