Thats true but BBC2 in the UK has shown almost all of the US Robinson editions instead of the regular Daytime editions, but they haven't been shown since this time last year. The only way it will be shown in the US is on BBC America but they don't tend to show gameshows.
The daytime episodes last for 45 Minutes which also include the odd contestant special like Family, Teachers, Students, Losers, Hairdressers etc... So far there have been over 500 Episodes come Christmas 2004 it will be nearing 600 and the most ever won is only around £4,000+. The average now is £2,500 per show out of the maximum of £10,000.
The Primetime episodes last for 50 Minutes but tend more to celebrities as originally there were 7 Champions Specials (49 Show winners from Series One) with some celebrity specials when the jackpot was at £20,000. Since the move to £50,000 there have been around 10 or so Normal episodes but tonnes of Celebrity Specials, there have been some rumours of ditching the Primetime shows since they average the same ratings as they do on the Daytime slot and getting too repitative.