In 2003, a CGI-animated special called The Alan Brady Show aired on TV Land. It was a spin-off from The Dick Van Dyke Show and starred Alan Brady, a pompous TV host who was a regular character on that show. The special was about a group of writers who had to deal with Alan's antics. Carl Reiner reprised his role while Dick Van Dyke and Rose Marie made cameo appearances on the show.
Despite being hyped at the time, there is little footage of the special on the internet. All that exists is a commercial for it on Youtube and footage on two of the animator's reels, which were uploaded to Vimeo.
There's also an article on the show that dates back to when the show first premiered: