Definition: In this task, you need to generate an appropriate title for the given summary of some paragraph. The generated title must be short and should include the main topic of the given text. Your summary should be less than 20 words long.
Input: This week marks 25 years since Hollyoaks first appeared on Channel 4 and to celebrate, the show will see the return of some old favourites.

Hollyoaks anniversary: 25 years of memorable storylines