The Montgomery County Precinct 3 constable's office says it found the videos at the home of Andrew Robinson of The Woodlands. Robinson is a pilot for Saudi Aramco and was out of the country.
He returned Saturday and authorities were waiting for him at Bush Intercontinental Airport.
"He was somewhat surprised," said Montgomery County Precinct 3 Constable Ryan Gable. "We believe that he had information that we were going to be waiting for him."
Robinson is in the Montgomery County Jail on three counts of possession of child pornography. The constable's office says the arrest is part of a new program targeting child predators.
