eco
When watching PAL (25fps) live or recorded HD video in Windows 8 Media Center I get while full screen flashes at repeatable points. It doesn't happen at regular intervals but sometimes you get a couple a few seconds apart and then none for 30 seconds. If I rewind the program and play it again it does it at the exact same point. I was using the same amplifier and TV with a 1st gen core i5 processor and Windows 8 64 bit and this had no problems with HD video. If I play back a SD video channel, it has no problems. I do have another computer with a 2nd gen core i7 but with NVidia graphics and it plays the HD clip back without issue. So the issue isn't with the recording. It seems to be only with the 4th gen core i5 video drivers.
The CPU is a Intel Core i5-4670T (HD4600) and the driver version is 9.18.10.3165