Yes, I'm in my 50s, and I (well, it ws my sister's) had the dog. I remember how the wheels clacked and the paper peeled off.
She broke it because she put it in a paddling pool to see if could swim (sadly, it could not).
I think it was called Snoopy.
As for the advert, I I like KST, but I hate the song- so that would make me switch off anyway. I get the nostalgia element- but that's 2 years running now, time for a change. And maybe an actual Christmas song. That would be different. (for JL).