Hitch-hiking, a once popular activity, is dying, even though there are more cars around and planes are cheaper than ever. In the first of three programmes, Kevin Connolly hitch-hikes out from Calais to see who would stop to give him a lift, how far he could get in one week and what thejourney would reveal about the way we travel now. 1: Connolly has to cope with the romantic attentions of a large dog. Repeated from Sunday