I really like Taskmaster, but I feel they're pumping them out a bit too quickly. The show's quality depends on the chemistry between the contestants and some of the more recent series have been a little flat in that regard.
I worry that it could turn out to be too much of a good thing, but I dont think it has got there yet, I have faith they can keep the quality up because I have really enjoyed all the series, but I do agree that the group dynamics havent been as good recently as they were in the past, perhaps because they are spreading the net wider for contestants.
I think my favourite series was 5, with Nish Kumar, Mark Watson who went together perfectly, and Sally Phillips, Aisling Bea and Bob Mortimer who were all hilarious throughout - I think that season was the highlight for the chemistry maybe?
But then the last two seasons have had my absolute favourite "characters" with James Acaster and Joe Thomas, both of whom got the time to shine and kept me entertained even if the whole group wasn't as great.
I think its such a good show idea that it can feel like a great series/episode even with the weaker groups. I just love watching these fun and funny people solve ridiculous problems.