Table: take_me_out_uk
Columns: col
airdate
no_of_couples
1st_couple
2nd_couple
3rd_couple
4th_couple
viewers_millions
itv1_weekly_ranking

Question: How many episode numbers are there on the show whose first couple was Stuart and Pegah>?
SQL: SELECT COUNT("col") FROM take_me_out_uk WHERE "1st_couple" = 'Stuart and Pegah'

Question: Who were the 3rd couple that were viewed by 4.89 million viewers? 
SQL: SELECT "3rd_couple" FROM take_me_out_uk WHERE "viewers_millions" = '4.89'