Requesting any bike trainer training tips

Back in my days when I'd do 3 hour trainer rides I'd play epic type video games or watch movies.

Just remember that a trainer ride is a constant effort compared to riding on the road where you can coast, soft pedal downhills, etc.  Doing a 90 minute trainer ride will feel (and probably physically be) more taxing than a similar road ride.

Have a towel handy to wipe away the sweat (I usually keep one draped over my aero bars while I ride) and if you have a fan, have it blowing directly on you.  And keep some windows open if it is not a million degrees out to help with ventilation.

Similar to what Rick and others have said.  I did several 3 plus hour rides this past winter on the trainer as I live in Chicago.  I usually just watched movies, I gave Netflix a good workout.  With no coasting on a trainer it really gives you a good workout.  I was more wiped out after riding 3 hours on the trainer than I was 5 hours on the road. 

Be sure to have a fan blowing on you and a towel handy.  I also ride on the trainer with a headband on to help with all the sweat. 

Get a very comfortable seat.

I like playing the Wii and getting in a double workout. 

Umm...yeah, I understand that now.  "The Boys" were more uncomfortable than my legs, which was hard to do, since my legs were on fire.  I had to keep on shifting my body on the bike, which got me out of good routine a lot.  Thanks everyone for your advice.  Sweat catchers of all types helped, and yes, keeping a 85+ pace for 90 minutes was pretty tough.  Hills are harder in the short-term, but never catching a break and keeping pedaling is tougher in the long term.  Hopefully spending some time on the trainer will get me ready to keep a steady pace up hills, rather than just slogging through them.