So, as you can see, the TL knobs will require some modifications to fit properly. I'm not sure if I'm going to go through the troubles to make them work or not, right now it's not at the top of my priority list. They're definitely the right size, I just wish I would have known the inner setup before wasting time & money ordering them.
Honestly, I didn't even attempt to try them out because I highly doubt the female portion of the TL knob would reach the male portion of the Accord's climate control. In order to make the TL knobs work, the inside would have to be slightly bored out & the Accord knob's female clip (the metal cylinder-like piece shaped like the letter D) would have to be retrofitted into it.
Out of boredom, here are the same comparisons between the Accord knob & the 09 RX-8 knob: