Traveling con-man, err salesman, Lyle Lanley debuts Springfield's new monorail system with celebrity rider, Leonard Nimoy.
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The Simpsons Season 4 Episode 12 Quotes

Kent Brockman: What have you been up to, Lurleen?
Lurleen Lumpkin: I spent last night in a ditch.

Marge: How fast is it going?
(Sees Homer scream in the speeding monorail passing by.)
Scientist: Well, judging by your husband's cowardly scream, 480 miles per hour.