There are many planet candidates identified by Kepler and TESS space telescopes that have yet to be confirmed as planets or false positives. We investigate these planet candidates by combining data from both Kepler and TESS, which allows us to confirm or rule out more planets than either would by itself. We use a method called "ephemeris matching" to identify contamination caused by astrophysical events like eclipsing binary stars. We will match signals from Kepler with newly identified signals from TESS to identify likely false positives. By identifying new false positives, we will boost our confidence in the surviving signals.