A review of the week's television presented by Ludovic Kennedy With a discussion of People from the Forest, the BBC2 film about the Soviet scientist and dissident ANDREI SAKHAROV , inventor of the hydrogen bomb and Nobel prize-winner. Among those taking part are Peter Redaway , senior lecturer in political science at the London School of Economics, and Peter Prince , writer of the BBC series Oppenheimer. Also Robin Denslow , Newsnight reporter and rock critic of The Guardian, with a critical report on television's treatment of rock music.