spertia: Before the age of the frozen rising crust pizza, frozen pizza wasn't all that special. It was all pretty thin crust with fairly low quality toppings. Now, it probably couldn't be mistaken for delivery pizza made with the average American's oven, but it's a shit load better than what there was before... closer to pizzeria pizza. Hence, their tag line.
... 13 pages of discussing pizzerias. And I thought people only took selvage denim this seriously here.