Answer:
The 'Larry David Show' as you have confusingly called it might be referring to either Seinfeld in which he only wrote and created and doesn't star in, I do not know when and where that is shown. The other show in which he both writes and stars in is called 'Curb Your Enthusiasm' and is shown on HBO. In the UK, it is shown on More4, usually at 0:40am on Mondays. There have been Seven Seasons and an eighth season is being filmed for a 2011 release. One episode includes Ricky Gervais.