I have uploaded a couple of Unitron Video Tours. One is an overview of the 3 inch Unitron 145C. This scope is more properly called a “Frankentron” because it was assembled from various Unitron and shop-made components, like a sort of astronomical Frankenstein Monster. I included some nice closeup views of the beautiful setting circles. Please check it out at http://www.youtube.com/watch?v=-UU8zxAxss0 . The second tour is the 4 inch Unitron 160. There are more views of the spectacular Weight Driven Clock drive as well as a brief tour of the entire system. See this at http://www.youtube.com/watch?v=f4-EvkX7D1s. There is also an amusing time-lapse of the assembly of this telescope at http://www.youtube.com/watch?v=izGbmA_73jc .