Sling TV, a $20 a month streaming-only cable television subscription service coming to the Amazon Fire TV and Fire TV Stick, will begin sending out their first batch of sign-up invitations tonight at 9 p.m. PT. Invitations will come with a 1 week free trial offer. If all goes well, the service will fully launch to everyone in about 2 weeks. Sling is also promising to offer device bundle packages that will be announced soon. No word if these bundles will just be extended trial periods, like the 30 day free trial announced for Xbox One owners, or if they will include service discounts.

Early reviews of Sling TV have been praising the service’s picture quality and fast channel flipping experience. The service’s DVR aspects, on the other hand, have left reviewers wanting more. Most channels, including ESPN and ESPN 2, don’t offer any DVR features and can only be watched live. It’s clear Sling TV, in its current form at least, isn’t the cable subscription savior we’ve all been hoping for, but it’s shaping up to be a great starting step.