Have you seen the show Extreme Couponing? It's a reality tv series produced by Sharp Entertainment and aired on TLC. 
I have seen it a few times, it looks very interesting.  Always interested in saving money
I've been interested in it too because it combines both shopping and saving as much money as possible. 
yes, where do they get all those coupons?
I'm not sure but it's really interesting how the show forces shoppers to make extensive and focused use of coupons. 
It really does take a lot of work and preparation to be able to cash in on these deals to save money.
regular airings in April 2011.
On June 6, 2011, TLC announced it ordered a second season of "Extreme Couponing". It premiered on Wednesday, September 28, 2011.
The third season debuted on May 28, 2012.
On November 20, 2015, the show returned to Discovery Family, a sister network to TLC, and was renamed "Greatest Givers: Extreme Couponing" for its run during the Thanksgiving season. It now runs regularly on Thursday nights on Discovery Family.
Reception.
Extreme Couponing
Extreme Couponing (renamed Extreme Couponing: All-Stars for its third season) is a scripted American reality television entertainment series produced by Sharp Entertainment and aired on cable network TLC in the United States and Canada.
History.
Extreme couponing is an activity that combines shopping skills with couponing in an attempt to save as much money as possible while accumulating the most groceries. The concept of "extreme couponers" was first mentioned by "The Wall Street Journal" on March 8, 2010 in an article entitled