Old AFL Guy has it right, go back to what the system was 30 years ago, let the refs call it on the field and it stands, just like an ump calling balls and strikes in baseball.
Everyone "knows" what a catch is at every level, everyone knows Kelvin B caught a TD pass, everyone knows the Pitt TE caught the game winner last week but both were called back due to micro-minutia decisions by instant replay.
The NFL is in serious decline in populatory for multiple reasons, this idiocy about what is a catch is just irritating, frustrating and is ruining any intergrity this game has left.