Lassie - Episode 46 - "The Trial" - Season 2, #20 (01/22/1956)

When Gramps refuses to sell the farm to Mr. Emmett Carey (the nephew of the man who left Lassie to Jeff), he convinces his son into pretending that a barbed wire scratch the boy got in the barn was a bite from Lassie, then sues the Millers to have Lassie destroyed figuring the Millers will give up the farm before giving up Lassie.
NOTE: This recorded episode has been edited to remove
commercials and add titles and descriptions. "Lassie" is
copyrighted and owned by Classic Media. The first 4 seasons of
Lassie were later rebroadcast as "Jeff's Collie". Recorded
from COZI TV in 2013 (via over-the-air antenna TV)