CREATE TABLE table_78766 ("Time" TEXT, "Show Name" TEXT, "Local/Networked" TEXT, "Ad Freq" TEXT, "News Freq" TEXT)

What is the local/network with an Ad frequency of 15 minutes?
SELECT "Local/Networked" FROM table_78766 WHERE "Ad Freq" = '15 minutes'
SELECT "Local/Networked" FROM "table_78766" WHERE "Ad Freq" = '15 minutes'