Chockablock

Chock-A-Block was a BBC children's television programme, created by Michael Cole and Nick Wilson. It was first shown in 1981 and repeated through to 1989 and shown as part of the children's programme cycle See-Saw. "Chock-A-Block" was an extremely large yellow computer, modelled to resemble a mainframe of the time; it filled the entire studio and provided the entire backdrop for the show. The presenter of the show played the part of a technician maintaining the computer. There were two presenters, Fred Harris ("Chock-A-Bloke") and Carol Leader ("Chock-A-Girl"), but only one appeared in each episode. At the start of the show, the presenter would drive around the studio towards the machine in a small yellow electric car, the chock a truck, before saying the catchphrase "Chock-A-Bloke, checking in!").