I've been scouring the web for proof but can't find it, but I am positive that about a decade ago, a Wings afternoon game (I think it was against the Stars) ended in OT, NBC wrapped up the broadcast and went to golf, and then they had to go back to the game because the OT goal was disallowed and OT resumed. Does anyone else remember this happening? Unfortunately I can't recall who scored the disallowed goal.
I think it was during a shootout. Turco threw his stick during Zetterberg's attempt. Initially it was ruled accidental and no goal, but then the refs decided the stick throwing was intentional and gave Hank the goal to tie it up. I think the Wings ended up losing anyway.