How to check BitLocker Status on a remote pc
manage-bde -status -cn COMPUTERNAME
How to change a BitLocker TPM pin on a remote pc connected to a Domain:
manage-bde -changepin -cn COMPUTERNAME
How to add a Bitlocker recovery key to Active Directory for a remote PC:
manage-bde -protectors -add C: -cn COMPUTERNAME
Please note that your AD has to have the necessary schema extensions before the above command will work.
I will add a few more later but I hope these will help someone.
Please post a comment if you have some more to add.