The Trip (BBC Two) http://www.tvmaze.com/shows/5033/the-trip
is presented here as 1 series with 2 seasons.
However on the BBC website these seasons are presented as separate shows.
The Trip: http://www.bbc.co.uk/programmes/b00vsvv5
The Trip to Italy: http://www.bbc.co.uk/programmes/b0406q2d