Play Hangman!!! :)

Episode title, three letters changed and one added...

In a crossover episode, one of the stars of Police Woman uses his smarts to solve a crime in Walnut Grove:

_ H _ - _ I _ _ _ _ - _ _ - H _ _ _ I _ _ _

Used letters: HI

I'm leaving the premises for awhile and will not to be able to participate! You're "Olney Child" quip reminded me of the Great Carnac! Brilliant!

I knew the "Hiyo!" would be a tip-off. 

Episode title, one letter added...

Lars tells Charles that his services at the mill will no longer be required:

_ _ _ _ _

Charles is overwhelmed with the cost of Mary's eyeglasses..........................

Episode One letter changed, one added

_ _ _   _ _ _ _  _ _ _ _  _ _  _ _ _ _ _ _  _ _ _ _ _

"The High Cost of Seeing Right"

Right again Hangman Breath!

Woo!

Episode title, one letter changed...

As punishment for acting up, Miss Beadle makes Laura stay after class and swab the floor:

_ _ _ _ _ _ - _ _ _

Boy, have you aged since the last time we talked!!!!!!!

You know the saying... after 50, you wear the face you've earned.

Rob, that face is super creepy!!!

Well! I don't have to take this abuse!

Episode title, two letters changed...

With the advent of the automobile, Lars Hanson opens a dealership to sell cars from his native Sweden:

_ _ _ - _ _ _ _ _ _

S?

Episode title, two letters changed...

With the advent of the automobile, Lars Hanson opens a dealership to sell cars from his native Sweden:

_ _ _ - _ _ _ _ _ S

Used letter: S

A?

and oh, hi!

Hiya! Sorry, no A.

Episode title, two letters changed...

With the advent of the automobile, Lars Hanson opens a dealership to sell cars from his native Sweden:

_ _ _ - _ _ _ _ _ S

Used letters: AS