Chock-A-Block was a BBC children's television programme, 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 supposedly played the part of a technician maintaining the computer; there were two presenters, Fred Harris and Carol Leader , but only one appeared in each episode. At the start of the show, they would drive around the studio... towards the machine in a small yellow electric car , checking in!". The presenter would then use the machine to find out about a particular topic. The name "chock-a-block" was supposedly derived from the machine's ability to read data from "blocks" - which were just that, physical blocks painted different colours.
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| On the air: | May 21, 1981-August 13, 1981 |
| Number of seasons: | 1 |
| Network: | BBC One |