While it's perfectly normal to see a Turkish test card in Türkiye, I think it's absurd to see it in other countries. I think it could have been a screen with the Jetix Play logo directly on it. Also, does the presence of this Turkish graphics card mean that Jetix Play's broadcast center is Türkiye, and do the countries with Jetix Play receive broadcasts from Türkiye? (Apart from its headquarters being in the UK)
The Ofcom broadcast licence was called "Jetix Play Turkey", so I guess this was the master feed and the main target country which the other providers redistributed (with their chosen audio tracks) in Eastern Europe.