They're using a pale yellow line for the line of scrimmage and a bright yellow line for the first down line, which is amazingly stupid.
whatever it is, it's confusing. Anyone who watches football knows yellow=first down line. Sportsline has the flag being for unnecessary roughness.
that's twice that the giants were offsides, but the rams didn't react, so no flag. A third time on a third down, it looked like the Giants end jumped early, but no call.