Sky Broadband is currently offering a free £50 voucher for customers who choose its triple play broadband deals.

Available only until March 25th 2010, the promotion applies on all Sky broadband bundles which team a home broadband service with a selection of premium TV content and a home phone and entitles each new subscriber to a £50 Marks & Spencer voucher.

This will arrive within 45 days of customers activating their Sky TV service. Sky also provides a free wireless router and a free Sky+ box and will carry out installation free of charge (usually £30).

Among the packages included in the incentive is the Sky+ Starter, which is priced just £18 per month. This includes a broadband connection of up to 2Mb with a 2Gb monthly usage limit and free weekend and evening calls to UK landlines.

The TV facet of this product entitles takers to one entertainment pack, which can be chosen from a selection of six. These take in Variety, Knowledge, News & Events, Style & Culture, Children's and Music. Alternatively, a range of broadband TV bundles that include HD channels is also on offer with a free voucher, including the best-selling Sky+ HD Starter offering.

Priced at £28 per month, this includes gets a free wireless router, free standard set up, an up-to-2Mb broadband connection (depending on location) and free off-peak calls and a choice of one of the six TV packs. However, instead of a standard Sky box, the HD edition is provided to allow takers to view the broadcaster's programming in rich HD.

Sky’s move to sweeten its broadband deals comes amid plans to further bolster the appeal of its service with the addition of 3D programming. High profile trials of the technology, which was employed to show Premier League football, have already taken place in selected bars and pubs around the UK to a hugely positive response.

It is not yet known when 3D will be available to home subscribers. However, new TV sets from the likes of Samsung, Panasonic and LG are compatible with the technology, suggesting that a launch could be due later in the year.