The “HDTV gearheads” at Gizmodo “had fun jumping between the networks, checking out which net was able to deliver the best HDTV signal from lens to screen” during the State of the Union. “This was a notable occasion,” the site says, “because all the networks were using precisely the same feed — the same cameras, same everything — where the only difference was between the Capitol pool feed and the viewer.”

Fox earned a D-, ABC scored a B-, NBC got a B, HDNet had a B+, and CBS was the winner with an A-. Here are the comparisons…