launchshow

noun
UK /ˈlɔːntʃʃəʊ/
US /ˈlɔːntʃʃoʊ/

A big show that starts something new.

We watched the launchshow for the new rocket on TV.


OTHER MEANINGS

2. A special TV program that introduces a new product.

The company held a launchshow to present its new phone.

3. A party or performance that celebrates the start of something.

The school had a launchshow for its new library.

4. The first episode of a series that starts a season.

Fans waited all year for the launchshow of their favorite cartoon.