Read on Twitter
Open-door shows are so few and far between these days. Most sketch shows use a small pool of commissioned writers. This is a great opportunity for new, upcoming comedy writers to get their work on the air. Big admiration for @jonholmes1 having an open-door policy. https://twitter.com/jonholmes1/status/1336631501824397314
More open door opportunities:
Newsjack on @Radio4Extra. Topical sketch show. Follow @NewsjackBBC for details. https://www.bbc.co.uk/programmes/b00kvs8r
Newsjack on @Radio4Extra. Topical sketch show. Follow @NewsjackBBC for details. https://www.bbc.co.uk/programmes/b00kvs8r
Sketch Please. A sketch podcast which has been recording remotely through lockdown. @SketchPleasePod https://www.podcastpioneers.com/sketchplease
Release the Clowns. Another open-door sketch podcast. https://releasetheclowns.podbean.com/
The long running live topical sketch show The Treason Show has a TV outing! https://www.treasonshow.co.uk/
My alma mater @NewsRevue of course. https://www.newsrevue.com/
I’ll add more to this thread as and when I hear of more open-door opportunities. 
