We continue our look at the collected "Beatles at the Beeb" (Lord Reith 2021 edition) with disc two.     It took the lads 14 months to generate a single disc worth of material, and now the BBC invites them back often enough that they can fill the second before the end of the summer.     The disc closes with the momentous event of "Pop Goes the Beatles" (they had moved all the way to the top of the BBC radio food chain), as their album appeared atop the British LP charts!