Hey, sorry if this is a noobie question, I'm a student doing an end-of-course project, and I was looking for TV's for a hypothetic company conference room, the one I picked (Sony Bravia x90J) has Google TV, then I thought about adding a Chromecast device, in case someone needed to cast something from an office, but then I found out about "Chromecast built-in"

would a Chromecast device be needed, or just by having the Google TV OS it already has all casting capabilities?

thanks