The finest in 'Scarfolkian' British sci-fi.
If, in the 70's in particular, you thought The Tomorrow People, Dr Who & Day of the Triffids were a bit tame then this weirdness is for you.
Rentaghost meets Dr Who, I barely remember watching it in the day (Space 1999 & Blake's 7 were more my thing). However, it still is well worth a look, if only to try & get your head round the warped & far out plots.
They just don't make TV like this any more, more's the pity.