The very good first season black and white episode "Eat at Mario's" and third season's very good also color episode "Dangerous Diaper Dan",wherein Samantha and Endora worked together?

Of course there were almost all the 3rd season eps were good, the first three had Sam discovering Tabitha's powers leading to Darrin finding out his toddler was a witch too. Accidental Twins, Aunt Clara zaps up another Jonathan Tate. The Trial and Error of Aunt Clara and when Tabitha's powers are tested and Endora wants Tabitha for Hagatha's school. The ep with Ho Ho the Clown was really good.