My friend saw the London Video Rick did on his show and we want to do that hike in March of 2015, Does anyone have information on this same hike??
Was it in London or perhaps in the Lake District or Cotswolds? Both the TV scripts and a summary of visitor info for the locations filmed is online for all the recent TV shows. For walks in the city of London, see also Rick's Audio Walking Tours.
He's done quite a few walks around the UK over the years that have had bits caught on camera, so if your friend can recall any detail (were there chalk cliffs, granite moorland, city walks?) it would help narrow it down... Even the London-specific material has information about a number of routes so without a landmark or borough name it'd be hard to help. Possible alternative - your friend and yourself could binge-watch all the online episodes until you run across the one you want! Even if you don't, it won't be time wasted :)