I think these days TV companies don't want old school comedy, they only want reality,soaps,cooking,antiques and house makeovers plus repeats, I think if they are not careful the move to Amazon TV or Netflix will take over, people will dump their TV licence,so goodbye BBC, they only have themselves to blame, these alternatives are offering some new good quality TV along with a large catalogue of varied TV and Films all for much less than a annual TV licence, and all with no adverts.
Very little is made by the actual TV companies these days, it is all done by private production companies then sold to a TV company, these private production companies are gradually moving and selling their products to online companies like Netflix where the budgets are much better plus they can move aways from the day to day drivel that the major TV companies expect them to produce.