Question: Travis Hampton Willingham is an American actor who provides voices on English language dubs of Japanese anime shows, as well as on cartoons and video games, he is the current voice of Knuckles the Echidna in the "Sonic the Hedgehog" video game franchise since which year, as well as in the "Sonic Boom" animated series?
{'answer': '2010', 'supporting_facts': [['Travis Willingham', 5], ['Sonic Boom (TV series)', 0]]}