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

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'