IMDb Seen: William 'Rosko' Mercer
How many of these titles with William 'Rosko' Mercer have you seen?
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1.Sesame Street S2E131 Episode #2.131 (1971)
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2.Sesame Street S10E20 Injured Arm (1978)
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3.Sesame Street S21E105 Oscar's Brother, Ernest, Pays a Visit (1990)
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4.Sesame Street S7E16 Episode 811 (1975)
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5.Sesame Street S7E18 Welcome To New Mexico (1975)