For me it is ch. 176.
However, since you did not give your location the channel number likely will be different IF Comcast in your area airs Reelz.
To find out go to the Reelz website http://www.reelz.com/
Scroll to the bottom of the page. On the left side next to Find Reelz, enter your zip code then click Submit.
If it is available to you the channel number will be listed under the Comcast box.