Entertainment Provisions can be purchased from either the Commodities Brokers, Specialized Commodities Brokers, Ships' Replicator, or Cargo Ships and Traders in Sector space.
The Base Energy cost is 800 each.
There is also a chance that will be dropped randomly from containers and enemies in the game world.
[Entertainment Provisions] Base Energy cost is 800 each.
[Entertainment Provisions] Ship Replicator cost 1,200 each.
[Entertainment Provisions] Sector space Trader cost 800 each.
[Entertainment Provisions] Regular Vendor cost 800 each.
[Entertainment Provisions] Specialized Vendor cost 800 each.
[Entertainment Provisions] Tuffli Class Freighter Quartermaster cost 800 each.
[Entertainment Provisions] New Romulus Embassy Discount Commodity Broker 600 each.
Entertainment Provisions are widely used in the duty officer assignment system. They are most frequently required of Development commendation point-awarding missions, such as “Compete with a Strategema Master”, “Play Tri-Dimensional Chess” and many others.
Konzaar, Broker Of Commodities on Deep Space 9 sells them at 800 , along with other discounted commodities (Self Sealing Stem Bolts, Warp Coils, Seismic Stabilizers and Terraforming Systems. This makes this place the most useful place to purchase the premium commodities used in the reputation system, unless you have access to the Romulan Embassy Discount Commodity Vendor.
 Getting EP for free
Very occasionally, this item will be dropped during space combat, but you typically only get a stack of two. Another free source is the assignment, “Special Deal on Entertainment Provisions”. It's advisable to take this mission whenever you see it, because critical success not only gives you 7 units, but also a special entertainment hologram, which will improve your chance of success with the tricky “Holodeck Performance of Hamlet” assignment.