It’s “'70s Theme” Night at tonight’s game at PPG Paints Arena. Among the many 1970’s items on display is a small operating 3-rail O gauge train layout. The engine and caboose appear to be K-Line which are newer than the 70's but there is a 1977 Lionel catalog on display along with some Lionel MPC cars from the 1970's. My niece is there and sent me the attached video.
According to the Pen’s website, the trains were part of a 1970’s Hobby Shop Display by Stew's Hobby Shop which also featured sports cards, slot cars, stamp collections, model cars, boats and more.
Update: the Game is now over and the Pens beat the Florida Panthers by a score of 5-1.