This was the song that kicked off the show:
There is just so much that is good about that. First of all, the band are really tight in terms of ensemble. The shuffle drums, walking bass and crisp sextuplets on rhythm guitar are integrated just right. Starting with the voice is a nice effect. Do people notice how much care the Beatles took over how songs started? People, and by people, I mean theorists like Walter Everett in his two volume book on the Beatles's music, rave about George's rockabilly guitar solo, but that, to my mind, is the one element that doesn't quite fit.
In retrospect, to listeners in 1964 who were alert (probably not me!), this was an electrifying experience.