Comedians who can tell jokes about anything and everything.
But presumably they still can, people were still going to watch Bernard Manning before he died and Jim Davidson has tour dates for this year, actually in Blackpool on April 4th
Perhaps Jim Davidson has "Refreshed" his act, don't know

So while many will still flock to watch them it's just that they don't necessarily get aired on live prime time TV now, but then again there were also top of the bill comedians such as Jasper Carrott from back then who also aren't prime time anymore.
As so often is the case you don't really seem to have a valid point
