The post from yesterday brought to mind another kids show I used to watch. Obviously not anywhere near the level of the Postgate stuff but as I child I never missed an episode.
One of my many attempts to get the morning off school so I could stay at home and watch this type of crap was mixing bits of toast in with my morning weetabix and then pouring the gooey mess into the bathroom sink in a very elaborately staged puke splatter effect, a forced retching sound added for believability and extra sympathy.
The one where I held the thermometer really close to the two bar electric fire before placing it under my tongue was always a winner.
This clip has been floating around for a while...