I have a pretty clever idea about how TAR could make the finale's even MORE exciting then they already are. Like Survivor does, why not film the ending of TAR LIVE? Of course this may seem impossible, but figure it this way:
Let's say they make the TAR5 finale 2 hours. The first 1 hour 1/2 to 1 hour 3/4 would be normal TAR footage. Then it would cut to a live feed... Phil would be standing with the racers on the finish line platform. Perhaps he would even walk around an talk them all briefly (since, keep in mind, most of them all would have JUST come from Sequesterville) "They're only moments away...Who will win? (etc.)" Phil would psyche up the audience. Camera's would keep an eye on a door or gate or top of the hill until the victors emerge, crank up the TAR victory music. Bam! Live AR ending.
I bet a lot of you think this is impossible--you could be right. Producers would have to organize this in a manner so that teams would essentially get all stuck together at one point, maybe 3-4 hours from the finish line. Timing would have to be perfect in order for the finale to not run more then 2 hours. Of course unforeseen delays could occur during the race, in which case the producers could build an extra 3-5 days into the race for "emergencies". If those days aren't all spent by the time the final leg comes, then the racers would just have one very extra long Pit Stop.
Keep in mind, the producers would have to have a top notch editing and post production team. Footage and audio taken by camera teams would have to be sent (via satellite I would imagine) back to CBS for immediate production, since the race would (basically) be happenning in "Real-time". It's a long-shot, but who knows...
I'm sure I'm missing a few gaps in the logistics department, but I dunno, I got bored tonight Gimme some input.