CREATE TABLE table_40541 ("Air Date" TEXT, "Timeslot" TEXT, "Rating" FLOAT, "Share" FLOAT, "18-49" TEXT, "Viewers" FLOAT, "Weekly Rank" TEXT)

What is the average share at 8:00 p.m., and an 18-49 of 1.3/4 with an air date of April 4, 2008?
SELECT AVG("Share") FROM table_40541 WHERE "Timeslot" = '8:00 p.m.' AND "18-49" = '1.3/4' AND "Air Date" = 'april 4, 2008'
SELECT AVG("Share") FROM "table_40541" WHERE "18-49" = '1.3/4' AND "Air Date" = 'april 4, 2008' AND "Timeslot" = '8:00 p.m.'