1 INTRODUCTION

2 THE POTS PROJECT

2.1 Characterization of the POTS target population

2.2 Photometric observing campaigns 2006–2008

2.3 Data analysis and light-curve extraction

2.4 Light-curve analysis and candidate selection

3 FOLLOW-UP AND CONFIRMATION OF POTS-1

3.1 Spectroscopic observations with UVES

3.2 Photometric transit observations with GROND

3.3 High-resolution imaging with NACO

3.4 Rejection of blend scenarios

4 POTS-C2

5 CONCLUSIONS