BBC Worldwide’s annual sales show for buyers from around the world reflects the broadcaster’s need to make a profit from exporting its shows to close the gap in funding after the recent licence-fee settlement in Britain. For five days, 560 self-confessed telly addicts from Argentina to India fill 500 TV booths in Brighton’s conference centre for marathon viewing sessions of shows such as <i>Life on Mars</i>, <i>Planet Earth</i> and <i>Robin Hood</i>.