This word is found in 爱拼才会赢, where I hear it as undoubtedly m̄-mián, yet when I look it up on 台湾闽南语常用词辞典 or on Wiktionary, I only find the pronunciation m̄-bián.
So I was wondering: is he getting it wrong, or is there really an alternate pronunciation m̄-mián which is unrecorded in either dictionary?