As a general rule, I don't enjoy recurring sketches on Mitchell & Webb. Snooker commentators, Quiz Broadcast, Sir Digby Chicken Caesar really experience diminishing returns.
On the other hand, I enjoy everything Numberwang they ever produced.
I thought that the Snooker Commentators and The Quiz Broadcast had nice arcs running through the sketches that kept them from becoming too tedious.
But I tend to watch these things all at one on YouTube, which helps make the arc clearer, and may compensate for issues seeing them as stand alone sketches.