How many Holby City and Casualty crossover episodes are there and when are they

Holby City trailer gives glimpse of series returning to BBC One soon

Watch Holby Blue Season 2 Episode 10 - Episode 10

Watch Construction Squad of Car City Season 2 Episode 14 - Frame the Roller Coaster / Constitute a Labyrinth

Watch Troy The Train of Car City Season 2 Episode 14 - ?New episode?Thanksgiving ! The forgotten Turkey/Pizza train/Tree Surgeon Train/Sanitizer Train

This new Holby City book is everything a fan needs

Holby City cast: New, leaving and returning characters

Holby City trailer shows hammer-wielding Cameron out for revenge after-faking his own death