Okay,’ the Prisoner’ isn't exactly full of belly laughs, but then you wouldn't expect it to be. However there is humour, and humour is the very essence of a democratic society, as No.2 once put it.
No.6's sense of humour has remained strong and unimpaired.
No.6 said of No.2 at the suggestion that he run for public office, No.2's position in fact "You have a delicate sense of humour" he tells No.2.
The episode ‘The Girl Who Was Death’ is teeming with humour, although I fear Mr. X doesn't find it at all funny! However it has to be said that there is a vein of humour which runs throughout the Prisoner series. No.2 of ‘The Chimes of Big Ben’ can find the humorous side of most things "I'll make you a handle for this door" No.6 tells him "Ha, ha, ha, ha" laughs No.2. Even during ‘Fall Out’ No.2 maintains his sense of humour "A strange thing happened to me on my way here! Ha, ha, ha, ha, ha" he laughs, and his laughter becomes infectious, even to members of the Assembly. And even when sealed up in that Perspex Orbit Tube No.2 still sees the funny side of his situation "Ha, ha, ha, ha, ha!"
‘Hammer Into Anvil’ is another example, when No.2 is confronted by the bomb disposal operative and a small cuckoo, cuckoo, cuckoo! And "we even have our own little newspaper" No.2 informs the Prisoner on the morning of his arrival "You must send me a copy" quips No.6. And whilst doing as the caveman did, No.6 quips to No.2 "I may even invent fire!"
No doubt you have favourite humorous moments within the Prisoner of your own which you could list.
"Ha, ha, ha, ha, ha........ be seeing you."