Clare Balding (BBC TV presenter)
I have covered the Grand National for 10 years but Saturday will be my first as lead presenter. I love doing it but it's frantic, you are literally running around from 8am until you are off air.

For the big race I'm going with Bewleys Berry. He ran well last year but he just didn't quite get round. I know that's a typical excuse but Hedgehunter managed to win after falling the year before, so I think Bewleys Berry has a good chance.

Here some of my BBC colleagues give their expert opinion on who they think will win the big race.

Jim McGrath (BBC TV lead commentator)
It would be a great story if Cloudy *** won it. He's been trained by Donald McCain, son of the legendary Ginger. Donald is relatively new to the game but he has handled Cloudy *** magnificently and the horse won impressively at Ayr and Doncaster.

Rishi Persad (BBC TV presenter)
I haven't backed the winner of the National since 1997 so I'm desperate to end my drought! This year my money is going on the David Pipe trained outsider Madison Du Berlais with some side bets on Simon, Willie Mullins's Snowy Morning and last year's fourth, Philson Run.

Mark Pougatch (BBC Radio 5 Live presenter)
Like Clare I'm going for Bewleys Berry. I remember West Tip winning the National in the 1980s after falling the year before at Becher's Brook. My selection did the same last year when moving so well, so I am hoping history will repeat itself.

Norman Williamson (Former jockey and BBC analyst)
Cloudy ***, the favourite, will take a lot of beating as he's been trained by the right people. Slim Pickings has a great chance too and Chelsea Harbour, another Irish horse, won the Grand National trial at Punchestown.

Grand National: Preview show (Friday, 1930 to Saturday, 1300, BBCi/online); Live racing (1300-1430, BBC TWO/online and 1430-1700, BBC ONE/online - big race at 1615); Radio commentary (1300 onwards, Radio 5 Live/online); Highlights (2340-0110, BBC ONE).

FA Cup semi-final: Portsmouth v West Brom (1200, BBC ONE; 1215, Radio 5 Live/online); Arsenal v Liverpool commentary (1245, Radio 5 Live sports extra/online); Score (1430, BBCi/online); Man City v Chelsea commentary (1500, Radio 5 Live/online); Wigan v Birmingham commentary (1500, Radio 5 Live sports extra/online); SPL: Commentary from every game (1500, BBC Radio Scotland/online); Final Score (1635, BBC TWO/online); Match of the Day (2210, BBC ONE/online).

Match of the Day repeat (0725, BBC ONE/online); Middlesbrough v Man Utd commentary (1330, Radio 5 Live sports extra/online; 2nd half - 1415, Radio 5 Live/online); Everton v Derby (1500, Radio 5 Live sports extra/online); FA Cup semi-final: Barnsley v Cardiff City commentary (1600, Radio 5 Live/online); Match of the Day 2 (2200, BBC TWO/online).

Formula One: Bahrain Grand Prix qualifying (0900-1000 and 1200-1300, BBC Radio 5 Live sports extra/online); Swimming: British Championships (1000-1145, BBC Radio 5 Live sports extra/online); Gymnastics: Women's European Championships (1300-1500, BBCi/online); Rugby union: Heineken Cup - Gloucester v Munster (1730-1915, Radio 5 Live sports extra/online); Boxing: Amir Khan v Martin Kristjansen (1930 approx, BBC Radio 5 Live/online).

Formula One: Bahrain Grand Prix (1230-1400, BBC Radio 5 Live sports extra/online); Swimming: British Championships (0955-1120, BBC Radio 5 Live sports extra/online); Rugby league: Super League Show (1205-1250, BBC ONE North/online and 0355-0440, BBC TWO); Gymnastics: Women's European Championships (1300-1500, BBCi/online and 1530-1705, BBC TWO/online); Olympic Torch relay in London (1735-1800 and 2220-2250, BBC ONE). Inside Sport: Repeat (Monday, 0440-0520, BBC TWO).