CREATE TABLE table_27074 ("Episode" FLOAT, "Stage" TEXT, "Celebrities" TEXT, "Directed and produced by" TEXT, "Original airdate" TEXT, "Viewers  ( overnight estimates ) " TEXT)

How many episodes had celebrity guest stars Frank Skinner and Lee Mack?
SELECT COUNT("Episode") FROM table_27074 WHERE "Celebrities" = 'Frank Skinner and Lee Mack'
SELECT COUNT("Episode") FROM "table_27074" WHERE "Celebrities" = 'Frank Skinner and Lee Mack'