Good news for all how like Popcorn Hour and want to watch TV on it. Using the latest version of VDR plugin streamdev-server the dream comes true :). The previous version was needed a patch to bring the stream in the format understandable for the networked media tank.
You can stream to Popcorn Hour not only standard definition signal but HD as well (you should have VDR with HD support). To switch channels and retrieve channel info and EPG can be used a simple web interface – vdr-ui. It doesn’t offer a full set of streamdev-client features but at least makes process of managing of the stream much easily. Hope it’ll be extended soon.