Question: what channel is celebrity big brother on in the usa
[{'answer': 'CBS', 'provenance': [{'wikipedia_id': '55182921', 'title': 'Celebrity Big Brother (American TV series)', 'start_paragraph_id': 1, 'start_character': 201, 'end_paragraph_id': 1, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'on CBS', 'provenance': [{'wikipedia_id': '55182921', 'title': 'Celebrity Big Brother (American TV series)', 'start_paragraph_id': 1, 'start_character': 198, 'end_paragraph_id': 1, 'end_character': 204, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '55182921', 'title': 'Celebrity Big Brother (American TV series)', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['CBS', 'Celebrity Big Brother, also known as Big Brother: Celebrity Edition, is a reality television spin-off series of the American adaptation of "Big Brother" created by John de Mol. The series premiered on CBS in the United States on February 7, 2018 and is simulcast in Canada on Global', 'Celebrity Big Brother, also known as Big Brother: Celebrity Edition, is a reality television spin-off series of the American adaptation of "Big Brother" created by John de Mol. The series premiered on CBS in the United States on February 7, 2018 and is simulcast in Canada on Global. The series is filmed at CBS Studio Center in sound stage eighteen located in Studio City, Los Angeles.']}}]}, {'provenance': [{'wikipedia_id': '60515009', 'title': 'List of Celebrity Big Brother (American TV series) episodes', 'section': 'Section::::Abstract.', 'start_paragraph_id': 1, 'end_paragraph_id': 1, 'meta': {'evidence_span': ['CBS', '"Celebrity Big Brother", also known as "Big Brother: Celebrity Edition", is the American adaptation of the reality competition television franchise "Celebrity Big Brother", which was created by John de Mol. The series premiered on CBS as counterprogramming to NBC\'s coverage of the 2018 Winter Olympics on February 7, 2018.']}}]}, {'provenance': [{'wikipedia_id': '860916', 'title': 'Big Brother (American TV series)', 'section': 'Section::::Format.:Season 2–present.\n', 'start_paragraph_id': 27, 'end_paragraph_id': 27, 'meta': {'evidence_span': ['CBS', 'Since its launch in the United States, "Big Brother" has aired on CBS.']}}]}]