Although there may be some references to concepts used in the tv-show, this one opens with a sequence taken from the 90s movie with Kurt Russel. Also, the way the stargate looks, how it opens and how Catherine interacts with it is a reference to the 90s movie when Daniel Jackson first goes through. Thus, the Catherine from that movie might as well been through this, but never deciphering the meaning of the symbols on the gate (among other aspects of it) -- and that could explain why in the 90s movie the gate was already set up with power and computers, and why they already expected it to be a gate (which the text Jackson reads when he gets there confirms).
Review of Stargate Origins: Catherine
