There's a free 36-page guide to buying your next TV with the May 2010 issue of What Hi-Fi? Sound and Vision, on sale now

Buying a new TV is not as simple as it used to be: whether you want a slimline flatscreen, internet connectivity, 3D-capability or Freeview HD, the choice can be baffling.

Fear not. The May 2010 issue of What Hi-Fi? Sound and Vision, on sale today, comes with a free, 36-page magazine to answer all your questions.

We explain how to get high-definition telly by satellite, cable or Freeview, everything you need to know about 3D TV technology, how to access the web via your TV and how to choose exactly the right model for you.

Plus there's a complete breakdown of all the new 2010 models from every manufacturer.

And that's before you even open the main magazine. As ever, it's packed with exclusive First Tests, including Rotel's sensational RA-04SE stereo amp, a Blu-ray soundbar from LG, some exceptionally stylish new headphones from B&W, Yamaha's latest Blu-ray player and a superb 50in plasma from LG's new Infinia range.

More after the break

This month's Supertest takes a long, hard look at six 40-42in flatscreen TVs from all the big names including Sony, Samsung, Panasonic, Philips, Sharp and JVC.

And we tune in to the best of internet radio with a round-up of portable DAB/web radios.

Group Tests abound with a three-way of soundbars for those who want to boost their telly's sound without all the clutter of a full 5.1 rig, plus we tell you how to turn your PC into a hi-fi by upgrading your DAC – we've tested six.

And we've put four top-notch projectors under the spotlight, from £3000-£5000.

Still not enough? Then there's a round-up of wireless headphones and, for vinyl lovers, a selection of moving-magnet cartridges to give your turntable an upgrade.

Oh, and don't forget you can win one of the first Samsung 3D TVs, the 40in UE40C7000, complete with two pairs of active-shuter 3D glasses in our exclusive May competition.

There's our usual trio of Temptations, showcasing "the world's most desirable hi-fi", and this month our reader panel addresses the question: "Can downloaded music sound better than CDs?"

For all this and more, don't miss the May 2010 issue of What Hi-Fi? Sound and Vision, on sale now.

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