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It's been on our screens for 50 years and is something of an institution. But Gardeners' World is more than just a cosy end-of-the-week watch. What's shown on Friday night has a direct effect on what sells in garden centres on Saturday morning. Its various presenters have reflected our changing tastes in gardening, and our reporter Sam Fenwick has been given rare access to the garden of the current incumbent - Monty Don.

The three main parties have all pledged to ban letting agent fees in England if they win the General Election this Thursday. But letting agents say the costs will just be switched to landlords and then passed onto tenants. Tenants say there's no evidence of that in Scotland, where a ban is already in place. We'll hear both sides of the argument.

And - they guide us on everything from organising our sock drawers to increasing our will-power: sales of self-help books are growing as fiction falls. But what makes a bestseller? And have any of them worked for you?