We report the results of our search for pulsating subdwarf B stars in full frame images, sampled at 30 min cadence and collected during Year 1 of the TESS mission. Year 1 covers most of the southern ecliptic hemisphere. The sample of objects we checked for pulsations was selected from a subdwarf B stars data base available to public. Only two positive detections have been achieved, however, as a by-product of our search we found 1807 variable objects, most of them not classified, hence their specific variability class cannot be confirmed at this stage. Our preliminary discoveries include: 2 new subdwarf B (sdB) pulsators, 26 variables with known sdB spectra, 83 non-classified pulsating stars, 83 eclipsing binaries (detached and semidetached), a mix of 1535 pulsators and non-eclipsing binaries, two novae, and 77 variables with known (non-sdB) spectral classification. Among eclipsing binaries we identified two known HW Vir systems and four new candidates. The amplitude spectra of the two sdB pulsators are not rich in modes, but we derive estimates of the modal degree for one of them. In addition, we selected five sdBV candidates for mode identification among 83 pulsators and describe our results based on this preliminary analysis. Further progress will require spectral classification of the newly discovered variable stars, which hopefully include more subdwarf B stars.

Cone search capability for table J/MNRAS/499/5508/table1 (Basic information of 28 objects classified as sdBs)

Cone search capability for table J/MNRAS/499/5508/table2 (Basic information of 83 pulsator candidates we found that are not spectroscopically classified)

Cone search capability for table J/MNRAS/499/5508/table3 (Basic information of 32 eclipsing binaries that show both primary and secondary eclipses)

Cone search capability for table J/MNRAS/499/5508/table4 (Basic information of 42 eclipsing binaries that show primary eclipses only)

Cone search capability for table J/MNRAS/499/5508/table5 (Basic information of nine eclipsing binaries with eccentric orbits)

Cone search capability for table J/MNRAS/499/5508/table6 (Basic information of 273 spectroscopically unclassified variables)

Cone search capability for table J/MNRAS/499/5508/table7 (Basic information of 1262 spectroscopically unclassified variables)

Cone search capability for table J/MNRAS/499/5508/table8 (Basic information of two nova stars)

Cone search capability for table J/MNRAS/499/5508/tablea1 (Basic information of 11 spectroscopically classified eclipsing binaries)

Cone search capability for table J/MNRAS/499/5508/tablea2 (Basic information of 36 spectroscopically classified variables)

Cone search capability for table J/MNRAS/499/5508/tablea3 (Basic information of 15 spectroscopically classified variables)

Cone search capability for table J/MNRAS/499/5508/tablea4 (Basic information of 14 spectroscopically classified pulsators)