Success!
I've re-downloaded your latest updates in the first post of that sticky and proceeded with the following, verbatim:
1) Hard Reset
2) Installed provisioning MRX_Sprint.cab
3) Soft reset (prompted to do so, did not argue and clicked "OK")
4) Installed Sprint 20TV_1_7_189014_0.cab
5) Soft reset initiated
6) Went straight to programs, started up Sprint TV
7) Clicked 'Continue' (where I ended up getting completely 'stuck' and it kind of 'hung' for awhile)
Was successfully able to get it working!!
The only real difference this time around, aside from my previous attempts with the first initial releases of your provisioning cab, was that I had manually initiated the 'data connection' in my comm manager prior to starting up the Sprint TV app. I didn't do that this time around and went straight to the app to start it up.
Whether or not my issues were related to the data connection setting having BEEN turned on prior to starting up the Sprint TV app, I'm not sure - since I didn't follow that same step when using the latest revision that you recently provided.
All I know is, it's definitely working for me and I can now comfortably configure and get my programs in Titanium organized! Thanks so much!