In MC 5.5.3 a 1080p24 project (columns show 1080p24, 24 frames, DNXHD 36, color space 709) is recognized by Aja IO Express as 1080p24sf (in AJa terms, means psf) and output on a consumer HD LCD TV (Sony Bravia 32EX520, which is in color space 709 mode) over HDMI doesn't work. Only once the Sony showed format not supported. AJA IO Express Test Patterns in 1080p24 will be output on the Sony over HDMI (but not in analogue Comp. SMPTE/EBU) without problem. 8 or 10 bit makes no difference in the 1080p24 project. A 625i project will be output from MC, Aja and Sony without problems.The delivered Aja 9.1 driver didn't work, I had to downgrade to Aja 9.05 driver, Aja firmware used is 05/18/2011. I'm  on Mac 4.1 (2009) Dual Quad 2,26 GHz, 8 GB, SSD, OS 10.6.8, Radeon 4870. Thanks for help!

I'm having the same problem here. U got any solution?

Cheers sven

some specs: mc5.5.3, eizo foris, project 1080p24, Mac, Aja io express, driver 9.05 (everything worked fine with Matrox mxo2mini)

It's possibly that your monitor will not support a 48Hz vertical refresh rate.

Sent the Sony Bravia model that I tried back for that very reason.

Sorry if that's the case.

Professional Panasonic series do, and possibly others.

I bought a Sony LMD 2110 W Professional Video Monitor (very small delay too), but in MC 6.5, you can switch the video output from psf to true p.