Final answer:
Revenue for the video streaming device should be recognized by Main Company on January 2 when the sale occurs, according to the revenue recognition principle in accrual accounting.
Step-by-step explanation:
The student's question is regarding when the Main Company should recognize revenue related to the sale of a video streaming device. According to the revenue recognition principle in accrual accounting, a business should recognize revenue when it is earned and realizable, regardless of when the payment is received. In the Main Company's case, if the video streaming device and the one-year subscription are sold as a single package for $200, and there is no stipulation for the services to be delivered over time or upon the occurrence of a future event, the company should recognize revenue when the sale occurs, which is on January 2.