Overview: Timmy enters a ""why I love my pet"" contest and entrusts Lassie to get the entry to the mailman on time, but she spends so much time aiding neighbors in trouble that the letter is not delivered.
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First Air Date: Sep 12, 1954Last Air date: Mar 24, 1973Season: 19 SeasonEpisode: 591 EpisodeRuntime: 24 minutesQuality: HDIMDb: 6.13 / 10 by 64 usersPopularity: 144.266Language: English