the 5v is the easiest way if your TV has a USB port
Go on google and find a 3D printing company that lets you order a print from them. or if you are lucky to have a 3D printer go to the software and bring up the sketch pad
12v fans you will need a 12v output transformer
5v fans get a USB cable -- this is the easiest way if your TV has a USB port
you need some small but splice connectors
now send the order and pay now wait for them to arrive.
now strip your wires put red in one end of the but splice and take the black and do the same.
12v -- if this is what you are using the black will have a white line on it.
5v--- red to red black to black
now put them in the but splices crimp them down now test if it or they spin fine mount them the way you want air in or air out.
if you have more than one put one in and one out.
now test and make sure they stay now you can extend the life of you TV.