In the past we've had the likes of classic Star Wars action figures, 1980s band Bananarama, guinea pigs, the Mazda MX-5 and the tuba.

In what is the start of the seventh series there's another odd one to add to the list - Callum and his chosen subject of Arnott's biscuits.

Apparently, he hasn't spent ages researching the biscuits but rather became an expert by accident - however that happens.

It's easy to understand the odd subjects; given a subject can't be repeated it stands to reason the more unusual ones will continue to surface.

Maybe it's just me, but there seems to have been a sudden resurgence of interest in the 1986 Chernobyl reactor meltdown.

At the time it was justifiably huge and frightening news as the reactor spewed radiation all over the countryside.

While also dealing with the clean-up, the Soviets also had to work on the cover-up. The truth was that the reactor was substandard - it wasn't designed to be able to carry out what it was actually doing.

But there was no way the Soviet bosses were going to say the state was at fault, so they had to point the finger at those who were on duty that night.

And so plant director Viktor Bryukhanov, chief engineer Nikolai Fomin and his deputy Anatoly Dyatlov all got 10 years hard labour in prison.

The whole terrible saga seemed be consigned to a forgotten page of history, until 2019 when HBO screened a five-part historical drama of the saga.

That seems to have sparked a lot of interest in the tragedy - perhaps driven by those too young to remember the 1986 incident.

There has been a number of books cranked out in the wake of the 2019 series - I've got two of them on the shelves at home - as well as fresh documentaries on the disaster.

This is the third part of the documentary series and includes some interesting information - including how the Chernobyl disaster ultimately led to Ukraine's push for freedom.

So even though it's the last episode and you may not have watched the other two, it's still well worth tuning in.

This cooking show takes a novel approach to preparing food on camera.

Rather than having "culinary personalities" showing you a few dishes, they instead have everyday home cooks.

They stand in their kitchen and watch a cooking show from one of these personalities and then try and replicate it at home.

As you'd expect, it doesn't always go as planned. People miss ingredients, or they drain away the water rather than keep it to add in later in the recipe.

It highlights one thing I've always felt about these culinary personalities. They've been cooking for so long that they take for granted techniques and methods that a home cook might actually struggle with.

So what is simple from a culinary personality's point of view may not be what the average person considers simple.