CREATE TABLE table_73154 ("#" FLOAT, "Episode" TEXT, "UK air date" TEXT, "Timeslot" TEXT, "Viewers  ( millions ) " TEXT, "Audience share in timeslot" TEXT)

name the total number of timeslot for number 1
SELECT COUNT("Timeslot") FROM table_73154 WHERE "#" = '1'
SELECT COUNT("Timeslot") FROM "table_73154" WHERE "#" = '1'