Sarah Vine and co-host Imogen Edwards-Jones are rather dubious about Boris Johnson's use of 'Franglais' (and very admiring of the young Prince Philip). They speak to Amanda Feilding, a psychedelic pioneer who believes micro-dosing hallucinogens such as LSD could solve people's mental problems (and who drilled a hole in her own skull to achieve enlightenment). Plus, someone tries to cure Sarah of her hatred of Strictly - and TV historian Bettany Hughes makes everyone jealous with a new series which involves rather a lot of glamorous travel…