For more information and to purchase online:

Season 1:
https://www.amazon.com/exec/obidos/ASIN/B0007ZSHR6/ref=nosim/happydaysonline3-20

Season 1 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00GOC75FQ/ref=nosim/happydaysonline8-20

Season 2:
https://www.amazon.com/exec/obidos/ASIN/B000BJS4UI/ref=nosim/happydaysonline3-20

Season 2 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00GOC74Z2/ref=nosim/happydaysonline3-20

Seasons 1 and 2 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00GOC75YW/ref=nosim/happydaysonline3-20

Season 3:
http://www.amazon.com/exec/obidos/ASIN/B000NJISIY/ref=nosim/happydaysonline3-20

Season 3 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00I099JXM/ref=nosim/happydaysonline3-20

Season 4:
https://www.amazon.com/exec/obidos/ASIN/B000NJISJ8/ref=nosim/happydaysonline3-20

Season 4 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00I099K18/ref=nosim/happydaysonline3-20

Seasons 3 and 4 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00I099K4U/ref=nosim/happydaysonline3-20

Season 5:
https://www.amazon.com/exec/obidos/ASIN/B000UX6TPC/ref=nosim/happydaysonline3-20

Season 5 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00OU4MTWO/ref=nosim/happydaysonline3-20

Seasons 5 and 6 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00OU4MUWS/ref=nosim/happydaysonline3-20

Season 6:
https://www.amazon.com/exec/obidos/ASIN/B000UX6TPM/ref=nosim/happydaysonline3-20

Season 6 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00OU4MSO8/ref=nosim/happydaysonline3-20

Season 7:
http://www.amazon.com/exec/obidos/ASIN/B00116GEEI/ref=nosim/happydaysonline3-20

Season 7 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00VX21WGA/ref=nosim/happydaysonline3-20

Season 8:
https://www.amazon.com/exec/obidos/ASIN/B00116GEES/ref=nosim/happydaysonline3-20

Season 8 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00VX21URQ/ref=nosim/happydaysonline3-20

Seasons 7 and 8 (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00VX21UL2/ref=nosim/happydaysonline3-20

The Best of The Cosby Show:
https://www.amazon.com/exec/obidos/ASIN/B000RW5BZA/ref=nosim/happydaysonline3-20

25th Anniversary Commemorative Edition - All 8 Seasons:
https://www.amazon.com/exec/obidos/ASIN/B001CIOCHQ/ref=nosim/happydaysonline3-20

The Complete Series (Mill Creek):
https://www.amazon.com/exec/obidos/ASIN/B00ZGRMTLA/ref=nosim/happydaysonline3-20