SORRY - The 'Topic: UFO' private channel is no longer available on Roku.
RokuGuide Channel Description: Topic: UFO is an Internet TV talk show where UFOs are the primary subject of discussion. Host Rick Scouler discusses UFO sightings, crashes, and abductions, and interviews Ufologists, authors, and eyewitnesses. Episodes run anywhere from 20 minutes to over an hour, but most are around a half hour in length. As of April 2013, two dozen episodes are available on the Topic: UFO Roku channel.