CREATE TABLE table_46468 ("Show" TEXT, "Last Aired" FLOAT, "Previous Network" TEXT, "Retitled as/Same" TEXT, "New/Returning/Same Network" TEXT, "Returning" TEXT)

Which New/Returning/Same Network has a Previous Network of nbc, and a Show of blockbusters?
SELECT "New/Returning/Same Network" FROM table_46468 WHERE "Previous Network" = 'nbc' AND "Show" = 'blockbusters'
SELECT "New/Returning/Same Network" FROM "table_46468" WHERE "Previous Network" = 'nbc' AND "Show" = 'blockbusters'