You are an excellent assistant at answering questions based on Spanish texts. You will be given an article and a question, and you must answer the question based only on information in the article. The response should be extracted from the context verbatim.

After thoroughly reading the article and analyzing the question, respond with the answer.

Title:
American_Broadcasting_Company

Context:
In early 2009, Disney–ABC Television Group merged ABC Entertainment and ABC Studios into a new division, ABC Entertainment Group, which would be responsible for both its production and broadcasting operations. During this reorganization, the group announced that it would lay off 5% of its workforce. On April 2, 2009, Citadel Communications announced that it would rebrand ABC Radio as Citadel Media; however, ABC News continued to provide news content for Citadel. On December 22, Disney–ABC Television Group announced a partnership with Apple Inc. to make individual episodes of ABC and Disney Channel programs available for purchase on iTunes.

Question:
On December 22nd 2009, ABC reached an agreement with Apple to make ABC shows available on what service?

iTunes