I was a Tivo user back in the day from Series 1 but have not had it for many years. I live in Manhattan and have Time Warner cable. After reading many threads on the woes of cable card + tuning adapter on the Roamio I was wondering if I pull the trigger can I see if the setup works before I commit to the subscription? I forget if I have to activate Tivo and start paying before it will let me go through the setup. I basically don't want to get locked into a 1 yr monthly contract if this whole thing goes to hell and I have to return the Roamio and go back to the twcnyc cable box. Thanks!