I also check the episode name against the .csv files from the Internet. The sample of  the .csv is here:
1,1,1,"276023",24/Sep/07,"Pilot",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/550436"
2,1,2,"3T6601",01/Oct/07,"The Big Bran Hypothesis",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/603610"
3,1,3,"3T6602",08/Oct/07,"The Fuzzy Boots Corollary",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/604480"
4,1,4,"3T6603",15/Oct/07,"The Luminous Fish Effect",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/607807"
5,1,5,"3T6604",22/Oct/07,"The Hamburger Postulate",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/614283"
6,1,6,"3T6605",29/Oct/07,"The Middle Earth Paradigm",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/618205"
7,1,7,"3T6606",05/Nov/07,"The Dumpling Paradox",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/618419"
8,1,8,"3T6607",12/Nov/07,"The Grasshopper Experiment",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/622781"
9,1,9,"3T6608",17/Mar/08,"The Cooper-Hofstadter Polarization",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/624751"
10,1,10,"3T6609",24/Mar/08,"The Loobenfeld Decay",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/641156"
11,1,11,"3T6610",31/Mar/08,"The Pancake Batter Anomaly",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/641157"
12,1,12,"3T6611",14/Apr/08,"The Jerusalem Duality",n,"http://www.tvrage.com/The_Big_Bang_Theory/episodes/641158"