He lives in a pineapple under the sea but our favourite yellow man, SpongeBob SquarePants, is in hot water from a study suggesting that watching just nine minutes of that programme can cause short-term attention and learning problems in 4-year-olds.
A US study randomly assigned 60 children to watch SpongeBob or a slower-paced cartoon or draw pictures. The researchers found that after nine minutes, when they took tests, the kids who had watched SpongeBob did worse than the others. The conclusion was that a typical SpongeBob episode of 22 minutes "could be more detrimental".
If adults were similarly tested after watching Shortland Street, I am certain that they would also do worse on mental tests than if they had been drawing. Why? Because they had just spent half an hour with their minds engaged by a story. This is what all great stories do - whether they are written or digital. Entertainment, like literature, draws us in and makes us think.
Adults like Shortland Street. No one criticises it for lack of self-improvement lessons. SpongeBob is one of the most popular kids' programmes ever. Are children not allowed to have fun with media too?
Parents are constantly bombarded by US academics telling us that television is bad for kids. Screens are blamed for everything from obesity to bullying to addictions.