Question: When was the last episode of i love lucy?

context: I Love Lucy is an American television sitcom that originally ran on CBS from October 15, 1951 to May 6, 1957, with a total of 180 half-hour episodes spanning six seasons (including the 'lost' original pilot and Christmas episode). The show starred Lucille Ball, her real-life husband Desi Arnaz, Vivian Vance, and William Frawley. It followed the life of Lucy Ricardo (Ball), a middle-class housewife in New York City, who either concocted plans with her best friends (Vance & Frawley) to appear alongside her bandleader husband Ricky Ricardo (Arnaz) in his nightclub, or tried numerous schemes to mingle with, or be a part of show business. After the series ended in 1957, a modified version continued for three more seasons with 13 one-hour specials; it ran from 1957 to 1960. It was first known as "The Lucille Ball-Desi Arnaz Show" and later in reruns as "The Lucy–Desi Comedy Hour".
question: When was the last episode of the original I Love Lucy?
short_answers: May 6, 1957
May 6 , 1957
context: No context provided
question: When was the last episode of the modified version of I Love Lucy?
short_answers: April 1, 1960
context: I Love Lucy is an American television sitcom that originally ran on CBS from October 15, 1951 to May 6, 1957, with a total of 180 half-hour episodes spanning six seasons (including the 'lost' original pilot and Christmas episode). The show starred Lucille Ball, her real-life husband Desi Arnaz, Vivian Vance, and William Frawley. It followed the life of Lucy Ricardo (Ball), a middle-class housewife in New York City, who either concocted plans with her best friends (Vance & Frawley) to appear alongside her bandleader husband Ricky Ricardo (Arnaz) in his nightclub, or tried numerous schemes to mingle with, or be a part of show business. After the series ended in 1957, a modified version continued for three more seasons with 13 one-hour specials; it ran from 1957 to 1960. It was first known as "The Lucille Ball-Desi Arnaz Show" and later in reruns as "The Lucy–Desi Comedy Hour".
question: When was the last episode of the original I Love Lucy first aired?
short_answers: May 6, 1957
context: No context provided
question: When was the last episode of the modified version of I Love Lucy first aired?
short_answers: April 1, 1960

Answer: The CBS sitcom I Love Lucy had an original version and a modified version. The last episode of the original I Love Lucy first aired on May 6, 1957. After the series ended in 1957, a modified version called The Lucille Ball-Desi Arnaz Show, later called The Lucy–Desi Comedy Hour in reruns, continued for three more seasons with 13 one-hour specials. The modified version ran from 1957 to 1960, and its last episode first aired on April 1, 1960.