Its the character moments in this that make Cold Fusion really sparkle. The interactions between Tegan and Chris pretending to be the Australian “Mr Jovanka” are priceless.

Unlike other multi-doctor stories they don’t get caught up in the boring process of comparing personalities - as there is actually a plot and they have something to do (even if it is just a bit of a run around). The idea of having the 7th Doctor as more of a background figure means that his presence continues to pack a real punch whenever he pops up.

After listening to it twice over the last couple of months I’m still not sure I 100% understand all of the facets of the plot - but it’s thoroughly enjoyable nonetheless (and it gives me an excuse to spin it a third time some day).