Originally posted by gkamieneski I would agree with the card reader if we were talking about a PC (although my card reader is already out of date and only handles SD). Here, though we are talking of connecting to the PS3 wich can run the photos to a HDTV. It is supposed to plug in through one of 2 USB ports on the front. This is the slim PS3 and I understand the older models had a card reader.
A USB card reader is cheap, faster than the USB cable of nearly any camera, and will work with the PS3. Plus it won't drain your camera's batteries while you use it, unlike using USB to the camera.
I would say that direct connection of a K-x to a PS3 is pretty rare and not many people (if any) have tried it.
Since the camera can apparently be changed between PTP mode and mass storage mode, most likely you want it in mass storage mode. Not sure whether the PS3 can talk to PTP devices.
I can't really provide much more info since I've never tried to directly read images from my K20D on my PS3 (I shoot RAW so it's simply not possible.) I have had good results sticking the SDHC card from my Canon HF100 into my USB 2.0 card reader and playing the videos with the PS3.