Year range The Secret Squirrel Show

Currently, The Secret Squirrel Show has a year range of 1965-2003: https://www.imdb.com/title/tt0058847/reference/

I don't know this show, but judging by the episodes listed on IMDb, I think the year range should be 1965-1966. But given the fact that I don't know this show and the fact that I don't know how/why 2003 was added to the year range, I think it would be best if a staffer or other contributor looked into this.

Also, it seems that this episode: https://www.imdb.com/title/tt5995242/reference/ should be merged into this episode: https://www.imdb.com/title/tt1533000/reference/