The ST50 should automatically detect a 24 Hz signal as long as what ever device is connected is outputting at 24 Hz. On your PS3 go to the settings icon and in there go into video settings. About half way down you'll see a the setting set for 1080p 24 Hz output. Best to put that on automatic. Thats really all you have to do. Pop in just about any Blu-ray and it should just work automagically.