What broadcast date have a weekly rank 73?
# Air Date Timeslot Rating Share 18-49 Viewers Weekly Rank
Amne$ia
real text text text real text text text
1-16072430-1
U.S. Standard Ratings
U.S. Standard Ratings
1 February 22, 2008 9:00 P.M. 4.6 8 2.4/7 7.44 TBA
2 February 29, 2008 8:00 P.M. 3.4 6 1.3/4 5.10 TBA
3 March 7, 2008 8:00 P.M. 3.2 6 1.4/5 4.73 75
4 March 14, 2008 8:00 P.M. 3.2 6 1.4/5 4.81 76
5 March 21, 2008 8:00 P.M. 3.5 7 1.3/5 5.15 64
6 March 28, 2008 8:00 P.M. 3.5 7 1.3/5 5.02 69
7 April 4, 2008 8:00 P.M. 3.0 6 1.3/4 4.51 73
table_16072430_1
SELECT COUNT Air Date FROM table WHERE Weekly Rank = 73
73