Disambiguation evidence for NBC show "The Sing-Off" via surface form

"The Sing-Off (season 3)"

Triples (1)

Triples where some other subject referred to this entity as "The Sing-Off (season 3)".

Pentatonix → won →
"The Sing-Off (season 3)"
↳ resolves to NBC show "The Sing-Off"
ⓘ