The C41 is the second generation client receiver from DIRECTV made to work with Genie servers. This client will only work with the Genie servers - the HR34 and HR44. You can attach up to five C31/C41s to your Genie DVR, but only three can be used at any one time. So we recommend just having a maximum of three clients attached. If you need to supply more TVs, we recommend the H25, which can use its own tuner. The C41 ships with a great new remote - the DIRECTV RC71.