I've heard Fielding talk about the Herbie TV Series, but I've never seen any of the episodes. The show was canceled after just 5 episodes and I've never seen them offered for sale on VHS, DVD or any other format. But, where there's YouTube, there's a way.
It's not the best quality video (or script writing, acting, or special effects for that matter) . . . but they are a must see for any Herbie fan!
Here's a link to episode 1 "Herbie the Matchmaker"