1) 1. According to HDMI CTS version 1 Test ID 7-9: TMDS clock jitter for 720p60 = 3.37ns
1) 2. The testing was done in an authorized test center using equipement specified or allowed by the CTS
2) 1. clock jitter @ 1080i30 -> 74.25MHz clock -> 0.25UI -> 3.37ns if I did the math correct.
3) 1. gear hopping should occur when the input format changes, There may be slight various ( almost unnoticable ) in the PLL to keep up with the active input but it should be relatively stable.