Argent on Set of 6

Recently, Argent's appearance on Set of 6 was uploaded to the Zombies Fan Club YouTube channel.  The date given is 29 May 1972, but in Jim Rodford: Sideman, Rodford (the bass player) writes, "In April, we recorded a special for Granada TV called A Set of 6" (p. 177).  Maybe 29 May was the broadcast date.  In any case, Rod Argent is playing a Pianet N, the newer of the two models he had (see my detailed post on his Pianets here).  He uses it for most of the songs, namely "Liar" (with what seems to be some kind of phasing effect), "Rejoice," "Sweet Mary," and "Keep on Rollin'."  Aside from "Liar," none of the studio versions of these songs features Pianet.