Lets see if I can duplicate your issue ...
I went to channel 1000, choose 1007 (ABC), I then went to Series A-Z, I choose Castle, after a few seconds I currently get 5 different episodes to show up, (why it doesn't show ALL Castle shows, I don't know), for grins I pick number 16 (again, unless you know the episode name you have no idea what your getting and I see no way to do a season in any kind of order - at least when you record the series in real time you get the Ep numbers.).
I then click Select, it gives me the option to Watch Now or Record .
I see you hit Record, so I will as well.
A screen pops up that says "this program has been added to your Playlist"
Click OK.
I click on My Playlist and see that the show is recording and currently at 10%.
Can I start watching from this point, I don't know, lets try.
Yes, it does play while reminding me that FF and other options may not be available ... not sure why that is btw.