"Butter Battle" -- after Dr. Seuss' "Butter Battle Book." Great book on the nonsense beginnings of wars.
Or "format food fight." Children in a middle school cafeteria flinging mashed potatoes and pizza at each other.
Maybe "format campaign." which combines the idea of a military campaign with the idea of a political campaign. Something like Sherman's march to the sea combined with political smear tactics.
Then there's "format frenzy," "revenge of the fuddites," "dawn of the dead format," "studio wars," "the thin blue line" (been used), "the Andy Parsons' comedy hour," "requiem for a combo," "profiles without courage," "foot-shooting contest," "rumble on the Titanic," "1040P beneath the sea," "jurassic perks," "laser wars," "from bang to whimper," "dead formats walking," "HD demolition derby," "my studio exec is an alien," etc.