It might have been Pippin,. He was also seen in a foreign ad. packing a suitcase and leaving home because the little lad who owned him was too busy watching telly.
I think it is Arthur for Kattomeat, now called Arthurs I believe. The original cat scraped the food out of the tin with his left paw and when it came time to replace him with a lookalike cat this created problems for the advert makers who (if I recall correctly), had to train another cat to do this.