For more information and to purchase online:

The First Season:
http://www.amazon.com/exec/obidos/ASIN/B0012EM5DS/ref=nosim/happydaysonline3-20

The Second Season:
http://www.amazon.com/exec/obidos/ASIN/B001HUHBD6/ref=nosim/happydaysonline3-20

The Third Season:
http://www.amazon.com/exec/obidos/ASIN/B002TQKL16/ref=nosim/happydaysonline3-20

The Fourth Season:
http://www.amazon.com/exec/obidos/ASIN/B007PK8686/ref=nosim/happydaysonline3-20

The Fifth Season:
http://www.amazon.com/exec/obidos/ASIN/B00CPSGI8S/ref=nosim/happydaysonline3-20