Do you think that it could be attributed to a cheaper TV tuner card or software that isn't as good?
no its a good card
it has nothing to do with the card
you can try this
https://secure.logmein.com/UK/
im not to sure if the video will be watchable theo using a remote desktop ??
no its not
everytime i log in with logmein.com i dont see my desktop wallpaper
so there isnt enough bandwidth to even show that much less watch tv over your remote desktop
no if it was a recorded program
all you have to do is go into your public docs/tv shows/
and click and drag it to what ever machine your using then play it with WMP
and your good
as for streaming live............ no
not with logmein.com
with logmein.com it has to go from your pc > modem > internet server > modem > current pc
if both machines offer it
you could use windows built-in remote desktop feature
and try that
but im not sure how well that would work
it should be slightly better if you are on the same network i.e. the same house
but if you are trying to run it over the web to a different place (city, state, or country)
you would be better off just downloading it to your pc from the other, then watching
there will be much less lag
less latency in the network
and less servers or even routers/switches to go through