From what I have seen, the jump/jitter is not as much related to the source as it is the individual LVW5005 unit. In my case, I am lucky and rarely have any kind of jump or jitter. I do not use the Liteon tuner. However a friend also has a 5005 and has noticeable jump/jitter. As a test, we decided to swap units for a few days. With "his" 5005 in my setup, I had significantly greater jump/jitter. This happened whether watching live TV with the signal "passing through" the 5005 or on recordings from cable. Conversely, with "my" unit placed in his setup, he had considerably less jump/jitter. In his case he does use the 5005 tuner. So I'm guessing I would have greater jump/jitter on my own if I used the 5005 tuner. Naturally, we returned the units to their respective owners. :bigsmile: He has since returned his to Liteon for repair, hoping it will reduce the jump/jitter in his machine.
So while the signal source could be a factor, I believe unit to unit variability (possibly due to differing manufacturing dates) is more significant. BTW we were both using the latest FW and both had digital cable as the signal source (different providers).