a crossover with

[IQU3838]

Hi,

Could anyone help me out with the underlined part of the following sentence?

Thank you very much.

I'd just finished watching the episode "Deadly Access"(a crossover with Simon & Simon) of Whiz Kids when an e-mail arrived in my inbox.

BTW, Whiz Kids and Simon & Simon were TV shows.

[SlickVic9000]

(Not a Teacher)

The cast of Simon & Simon appeared in an episode of Whiz Kids. A crossover is when cast members from one series participate in an episode from another series.

[Ouisch]

Here's another example of a crossover episode - Jamie and Fran from Mad About You stop by the Central Perk on an episode of Friends. They see Phoebe and think that she's Ursula (Phoebe's twin), the inept waitress from Riff's.