It's possible that your movie is suffering from "twitter", the specific kind of flickering that comes from having fine vertical detail in interlaced video. Here's a page that gives some recommendations for avoiding this problem, specifically concentrating on the problems of text and vector graphics.
Without an exact description of your steps and settings used in each of the programs, it will be near impossible to advise. Yes, quite likely something with fields (and possibly other issues), but without even knowing which part of the world and thus whether PAL or NTSC or any of the interlaced HD formats is used, nobody will be able to give you andy specific pointers...
Things to consider:
Source footage must have the field order properly interpreted, from the Project Window. To check, place source footage in a temporary comp, and set the comp's framerate to double that of the footage. Interpret your footage as Upper Field First, then step through it in the comp frame by frame. If the motion steps forward/backward in time, change the interpretation to Lower Field First.
You must render to the appropriate field order. This depends entirely on your output medium. If you're outputting to DV, for example, you must use Lower Field First. To HDV, you must use Upper Field First. If you're outputting to DVD, your DVD authoring/encoding application must know what field order you rendered to.
Fine lines and areas of high contrast can flicker on interlaced monitors. In your output comp, try adding an Adjustment Layer to the top of the stack, and apply the Reduce Interlace Flicker effect, with a value between 0.5 and 1.0. This will subtly smear pixels between lines, reducing the flicker.
Here is an example of what I'm talking about: http://rapidshare.com/files/433862371/Sample.mov
Viewed on the PC is not bad, but on TV, my God, it really sucks.
The video material is NTSC DV but the really issue, I think, is on the graphics side.
Thank you all.
Could be my firewall but I can't see anything on that site and a popup comes on requiring I register.
I was able to download and look at the movie. It has some sharp details that could twitter when viewed as an interlaced movie.
Check out the link that I provided in my earlier post. Also make sure that you're following Andrew's advice regarding rendering fields.