Sling TV launched recently with an interesting proposition. Pay $20 per month and get a handful of TV channels streaming to all your devices without a regular cable subscription. To sweeten the deal, Sling is teaming up with Amazon to offer a discount on FireTV devices, which can be used to watch Sling TV.

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Subscribing to Sling TV entitles you to channels like ESPN, ESPN2, Disney Channel, CNN, HGTV, and more. There are also a few $5 add-on packages for more sports, kids programming, or news. If you pre-purchase three months of Sling TV, you'll get a promo code good for a free Amazon FireTV Stick ($39) or $50 off a regular FireTV (priced at $99).

So you spend $60 on Sling TV, and you can get $40-50 in free stuff from Amazon. That's not a bad deal if you're curious about Sling TV. It's probably the easiest way to get access to cable channels without a pricey cable package, but be aware most of the channels are live only—no rewinding or pausing.