1973: The first four Homo-superiors left to right, Kenny (Stephen Salmon), Stephen Jameson (Peter Vaughn-Clarke), Carol (Sammie Winmill) and John, the TP's unofficial leader (Nicholas Young). Incidentally the voice of TIM was played by the late Phillip Gilbert.
1974: Kenny and Carol depart to live on the Galactic Trig for a while, and in comes schoolteacher, Elizabeth Umnondo (Elizabeth Adare, centre).
1975: The three are Joined by Tyso Boswell, the gypsy boy (Dean Lawrence, far right).
1976: Four became five, in came Mike Bell (Mike Holoway, centre), who led a double life as the drummer of pop band Flintlock.
1977: back down to three when Stephen and Tyso leave the group.
Other TPs who didn't make it into Look-in: Hsui Tai (Masako Koba), although she did appear in a strip in one of the annuals, and Andrew (Nigel Rhodes).