What is the relationship between countdown and Channel in the context of the input sentence. Choose an answer from: product/material produced; manufacturer; distributed by; industry; position held; original broadcaster; owned by; founded by; distribution format; headquarters location; stock exchange; currency; parent organization; chief executive officer; director/manager; owner of; operator; member of; employer; chairperson; platform; subsidiary; legal form; publisher; developer; brand; business division; location of formation; creator.

Separately, we are also excited to share that our first movie through our relationship with the Hallmark Channel is slated to release this holiday season as a part of the ever popular Hallmark Channel countdown to Christmas.

Answer: original_broadcaster