Normalized and folded TESS LCs of the following systems. Upper left panel: LC for Cyg OB2-1 in sector 14 (blue) and 15 (red). Upper right panel: LC folded for Cyg OB2-1 using the orbital period. Middle left panel: Folded LC using a period P = 3.317 d for Cyg OB2-41. Middle right panel: LC for Cyg OB2-11 in sectors 14 and 15. Lower left panel: LC for 68 Cyg observed in sectors 15 and 16 (about 54 days). Lower right panel: Folded LC for 68 Cyg using the most significant period, P = 1.405216 d. Red dots represent a smoothing done to enhance the perception of the periodicity in the data.