The crew assemble an IKEA 'rejuvenation shower' and end up back on Earth in AD23.
Like the first two episodes of series 10, I enjoyed Lemons as a story and think some of it is very clever, but I rate the comedy as amusing at best.
It has a plot that has a decent and quite funny sci-fi concept, particularly the IKEA reference. When they go back in time and meet a historical character the focus shifts on to some good religious satire which is pretty thought provoking.
The humour is one of continual amusement but never anything that produced big laughter from me. Comedy though is in the eye of the beholder so someone else may find it funnier than me.
All performances are as good as ever and the visuals work well.
For me it's an 7.5/10, but I always round upwards.