@joanna Agreed! The Sling TV interface on Roku is actually quite nice in that you can rewind with a little thumbnail preview without pausing the live playback. But again, that's only for some channels that support it.
@matigo@cgiffard I think it's been well-received but difficult to get the word out. A mix of bloggers and random static web sites. It's good for when a site doesn't have any other easy way to do search.