I inquired to either Paramount or Columbia House back in 1993 and recieved the following list of Brady Bunch Episodes that were offered at that time: (3 episodes per tape)

The Honeymoon
Going Going Steady
Getting Davey Jones

Brace Yourself
My Sister Benedict Arnold
Subject Was Noses

Father of the Year
Where There's Smoke
Greg Gets Grounded

A Clubhouse is Not a Home
Greg's Triangle
Quarterback Sneak

Vote For Brady
Treasure of Sierra Avenue
Adios Johnny Bravo

The Tattletale
Personality Kid
Today I am a Freshman

The Hero
A Fistful of Reasons
My Brother's Keeper

The Winner
Fright Night
Getting Greg's Goat

Comming Out Party
Teeter Totter Caper
You Can't Win Em All

Kitty Karry-All is Missing
Great Earring Caper
Cincinnati Kids

So some eps are not inclued anymore in either the current Paramount OR Columbia House editions, so hold on to whatever you have!!! But I don't know if the list above is from Paramount or Columbia House