I've always suspected that the problem with "Later" is that Jules Holland has the bands foisted on him by the production company.
The reason he comes over so oddly is that he is only too aware that many of them are absolutely useless!
Unfortunately showbiz rules say that he has to introduce them all as if they are the wonders of the age- so a certain amount of insincerity shows through - especially since JH is not above a bit of ironic over-enthusiasm for a bunch of musical illiterates who have just lurched about the stage thrashing at their instruments and screaming more or less at random then, without any apparent conclusion being reached, stopped and slouched away looking disgusted. (Jonathon Ross often has one of these bands on too)
I'll watch the recording of the show later today.
It's a shame that the only music programme on TV should be such a lame mish-mash, because there are some really good artists about.
Cheers
Dave