I think that most people would agree with you that the belt hasn't really seemed to mean much at all (in it's entire lucrative TNA run! lol!). It honestly seemed the most prestigious when it was first debuted as the "Legends Title". At least to me, that's when it seemed the most valuable...when Booker & AJ were fighting for it.
I actually liked when EY had it for the short time, it seemed like it might get some momentum going for it...even though most fans hated the "Global" moniker that was given to it. EY seemed to really value the title. It helped his new heel character (at the time), and his heel character helped to make the belt seem important...at least that's how I saw it at the time.
I agree with you, it seems to me that a TV Title should be defended at least a few times a month. Some would even say it should be defended on every television broadcast.
The TV Title definitely needs some help, I just don't know how it can be helped. Obviously TNA creative doesn't either...they don't seem to care about it at all. I think the problem now is that they keep putting it on jobbers that aren't even close to the upper mid-card (guys like Rob Terry, Orlando Jordan, Gunner, etc). Guys like Bully Ray, Matt Hardy, Matt Morgan, Jarrett, Hernandez, etc. might be able to help get it going again. Then again, AJ's last run didn't do a whole lot for it either. You're right about Abyss' reign as well, it was just sad. Who had it before Abyss? Was it Doug Williams? ...Williams wasn't a terrible choice.
Just like many others have said, the TV Title should be treated like the second most prestigious belt in the company. I don't know why TNA doesn't have more "established" wrestlers (that aren't in the main-event scene, but could be) going after it.