Newbie help on Jailbreaking a 4.4.4.

Hi I saw a few youtube videos about JBing a ATV2 & thought I’d go for it as not really getting much use out of it at the minute. It’s running 4.4.4. firmware so do I have to install an older version of Seasonpass as its a 4.4.4. or will the latest software suffice? Before I do this do I need to back up the ATV2 to my laptop, I saw something about “tinyumberella”? Thanks in advance & excuse my ignorance. ;)  

First things, you need to save your SHSH Blods into laptop, Follow this and easy to JB.