Horizon (9.30pm BBC2) Jonathan Miller explores a century of anthropology by retracing the first such expedition ever undertaken - to the Torres Strait Islands in the Pacific in 1898. This particular Victorian jaunt lay down the ground rules for anthropology; its aims, ethos and ground rules. But is it a "science" at all, especially when the observer has such an instant and profound effect on the observed?
Five Easy Pieces (11.50pm BBC1) Bob Rafelson's 1970 classic is centred on Jack Nicholson's most complex performance to date. He plays the scion of a musical upper middle-class family who runs away from his fate as a classical pianist to work in the oilfields of Texas. The film follows Nicholson from his adopted existence as a beer-guzzling blue collar worker back to his roots after he learns that his father has had a stroke - taking Karen Black's dimwit waitress girlfriend back to shock the old folks.