Which of the following is NOT typically included in an IFR flight plan?

In an IFR flight plan, specific operational details are crucial for the safe navigation and management of the flight. These details generally encompass the destination airport, the route of flight, and the estimated time of departure. Each of these elements is vital for air traffic control and safety, as it allows for planning, spacing, and coordination with other flights.

In contrast, the choice of in-flight entertainment is not relevant to the operational aspects of the flight. IFR flight plans are designed to provide information pertinent to air traffic management and safety, lacking personal preferences or amenities that do not relate to the flight's navigation and control. Therefore, this choice falls outside the realm of what an IFR flight plan typically includes, making it the correct answer in this context.