The Big Bang Theory featured Valyrian Steel’s Longclaw, presented there as being a replica of the sword from the TV series. Not long after, the executive producer of BBT, Bill Prady, tweeted that the sword would now become a permanent part of the show’s set.
And now we can see it, in the very next episode, “The Rhinitis Revelation”. For those in the U.S., you can actually watch the video of the episode here, where the best glimpse of the sword—on the wall with its decorative heraldic crest featuring a white direwolf and the words “Winter is Coming”—can be seen at about the 6:30 mark. And for those who aren’t in the U.S., here’s a quick screen grab.