LG HF80J Owner's Manual page 39

Supported HDMI Mode
Resolution
640 x 480p
720 x 480p
1280 x 720p
1920 x 1080i
1920 x 1080p
Horizontal Frequency
(kHz)
31.46
31.50
31.47
31.50
44.96
45.00
33.72
33.75
26.97
27.00
33.71
33.75
67.43
67.50
Vertical Frequency
(Hz)
59.94
60.00
59.94
60.00
59.94
60.00
59.94
60.00
23.97
24.00
29.97
30.00
59.94
60.00
39