I'd say play about with the TV settings and make sure you've got 24 hz working properly if possible, and reduce any optimisation settings on the TV - they can sometimes introduce more problems than they address.
My TV (Toshiba 37XV505DB) and HTPC play very nicely with blu rays on 24Hz, better than 50/60Hz, but not massively so. Once I got my software related problems sorted (latency spikes on my HTPC, was AMD cool n quiet btw) playback was buttery. On that note, make sure you have the latest TV and blu ray player firmware. Might have to email the TV manufacturer to make sure.