Seagate is not allowing me to make partition on MS-DOS (FAT) Or ExFAT! I just bought an external hard drive (Seagate Backup Plus Slim 2 TB) for my Mac (Yosemite installed) for professional photography. 

I wanted to make partitions for both Mac and Windows, but it only allows for Mac. I think as I tried so many time. So I put Basic device (2 TB) on Mac (Mac OS Extended (Journaled)) and then made two partition, one just for the Mac (Mac OS Extended (Journaled) 500 GB) and main one (photos 1.5 TB) for Mac and PC. 

I wanted to connect it to a TV also. But unfortunately it isn't detected there. I think because the basic drive is formatted as Mac OS Extended (Journaled). Is it? How to make a basic device on FAT32 or exFat? (I know how to make partitions though but  Seagate doesn't allow me to make one with a specific format) So then I can make partition and use this device on my Samsung LED too. Or should I return and buy WD Passport? I don't know what to do. I hope anyone will have good suggestions here.
By accident I found that, by attempting to reformat my Seagate drive as FAT32 (which failed), I was then able to reformat to Mac OS (J Ex) with the partition options available… This then said it was able to work as a startup disk – not tried booting from the CCC backup yet, fingers crossed!