I went back and looked on the Hangout search option and clicked on game threads and typed in Wieters and signs. I swore to myself I remembered a game in Toronto where Matt was giving a different set of signs with nobody on base. Sure enough I found it. April of 2014 I posted something on a game thread about Wieters giving different signs. Someone else also in April of 2012 posted Wieters giving odd signs with nobody on base. Both games were in Toronto. I’m not sure how to share the posts on this thread.
The Orioles thought something may be going on or they obviously don’t go to all that trouble.
At the end of the day in theory what the Astros did could have happened years ago. This wasn’t their replay room. They had a camera in CF with a live feed to a monitor near the dugout. As long as your feed is in real time and the camera is hidden a team could have done this in 2005 for the sake of argument. I know in 17 the camera was legal for player development.