Testing the elgato Game Capture HD's Composite over Red Component analog AV input. Appropriately, I chose Retro City Rampage by Brian Provinciano to test. So far, the GCHD has no perceivable lag when passing through the gameplay (I do have to switch to the HDMI input on my monitor to play, however). The analog to digital conversion step was seamless as well. This GCHD is making things very easy for me to start producing gameplay videos again.
On a side note if you're encouraged to buy Retro City Rampage and if you have a Wii, I strongly urge you to download the WiiWare version. Help Brian, the game's developer, breach the WiiWare minimum sales threshold so he can earn money on this port (meaning he does not earn a penny until the minimum number of units are sold). As a bonus, there's a "prototype ROM" of Retro City Rampage that shows what the game would have looked like as a NES game.
Retro City Rampage Statistics For thesavepointdotnet
At this time, thesavepointdotnet has 235 views for Retro City Rampage spread across 2 videos. Less than an hour worth of Retro City Rampage videos were uploaded to his channel, or 1.19% of the total watchable video on thesavepointdotnet's YouTube channel.