[mulliganman]

Steps
1. download tr.apk from towelroot.com
2. Adb install tr.apk
3. Launch tr.apk on fire
4. Install a file manager (your choice there are many es file manager worked for me)
5. Adb push xbmc.png. you can find app icons on the xbmc wiki.
6.replace all of the images in the /sdcard/imagecache/com.amazon.venzia/com.adrise.profilms/B00IIPRAZB4 folder with the xbmc.png image making sure to retain the original images name (ex thumbnail_4312.....) you can get the original name by highlighting the original png and then hitting properties and copy full path. Delete the original them rename xbmc.png to the full path paste removing folder info.

7. Repeat this for all of the images in this folder.

8. Reboot the fire TV and voila the home screen app for classic TV is an xbmc icon.

9. Dance around because now you can leave the fire TV on the home screen and your wife can find it.

10. MOST IMPORTANT STEP donate to geohot the developer who cracked the permissions for root.

How does changing the png file change the association so it will launch xbmc? I can understand how the above changes the ico but theres nothing there to redirect the app?

You still have to use llama as described in the wiki.

So, you have to use llama and classic tv for "launching xbmc from an existing app" first? Is that correct? Does it matter which llama event from the wiki is used? I'm also confused as to step 6