Amazon currently has M*A*S*H: The Complete Series + Movie set as a bonus deal of the day priced at $69.99, which is the lowest price it has hit on Amazon according to CamelCamelCamel.
Link: http://www.amazon.com/dp/B00BMJ7ZKG/ref=gbrc_img_r-1_7902_55bfe864?smid=ATVPDKIKX0DER&pf_rd_m=ATVPDKIKX0DER&pf_rd_t=701&pf_rd_s=right-new-1&pf_rd_r=05H8XHTRA1YEFA5ZBMXX&pf_rd_i=20&pf_rd_p=1958457902
Link: http://www.amazon.com/dp/B00BMJ7ZKG/ref=gbrc_img_r-1_7902_55bfe864?smid=ATVPDKIKX0DER&pf_rd_m=ATVPDKIKX0DER&pf_rd_t=701&pf_rd_s=right-new-1&pf_rd_r=05H8XHTRA1YEFA5ZBMXX&pf_rd_i=20&pf_rd_p=1958457902