In the TV Shows section you show a grid of each series with an icon/thumbnail for each. This allows someone to navigate their recordings. To play something, you click the select button to navigate into the series and then have the option of playing/continuing/etc.
Directly from main TV Shows grid I think you should be able to hit the Play button on the remote and have it start/continue the content for that series. If there is only 1 episode in the series it would just immediately begin playing it. If that episode had been viewed for 10 minutes, it would continue from the 10 minute mark.
This improves the speed with which you can get content going and reduces the clicks required to start playing content.
