The series itself was okay, although I suspect it was more famous for its title sequence than its actual content. Basically, Tales of the Unexpected was Roald Dahl's attempt at the Twilight Zone/Outer Limits - a screen adaptation of the eponymous short story collection. Having not read this book, I couldn't tell you how well the stories were adapted, although like the aforementioned TV shows, they sometimes involved an element of the supernatural and one of the characters usually getting their just deserts by the end. I've seen them described as campy, although I think mediocre would have been a better word to use. Most episodes are watchable and are of acceptable entertainment value, although some having pacing issues and the production quality certainly isn't up to today's standards.
If you're a fan of the Twilight Zone, this might be worth a look.
If you're a fan of the Twilight Zone, this might be worth a look.