<Tr> <Th> 243 </Th> <Td> 12 </Td> <Td> "The Matrimonial Metric" </Td> <Td> Mark Cendrowski </Td> <Td> Story by: Maria Ferrari & Tara Hernandez & Jeremy Howe Teleplay by: Steve Holland & Eric Kaplan & Andy Gordon </Td> <Td> January 4, 2018 (2018 - 01 - 04) </Td> <Td> T12. 15612 </Td> <Td> TBD </Td> </Tr> <Tr> <Th> 244 </Th> <Td> 13 </Td> <Td> "The Solo Oscillation" </Td> <Td> TBA </Td> <Td> TBA </Td> <Td> January 11, 2018 (2018 - 01 - 11) </Td> <Td> T12. 15613 </Td> <Td> TBD </Td> </Tr> <Table> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Air date </Th> <Th> Rating / share (18--49) </Th> <Th> Viewers (millions) </Th> <Th> DVR (18--49) </Th> <Th> DVR viewers (millions) </Th> <Th> Total (18--49) </Th> <Th> Total viewers (millions) </Th> </Tr> <Tr> <Td> </Td> <Td> "The Proposal Proposal" </Td> <Td> September 25, 2017 </Td> <Td> 4.1 / 16 </Td> <Td> 17.65 </Td> <Td> 1.7 </Td> <Td> 5.42 </Td> <Td> 5.8 </Td> <Td> 23.08 </Td> </Tr> <Tr> <Td> </Td> <Td> "The Retraction Reaction" </Td> <Td> October 2, 2017 </Td> <Td> 3.2 / 12 </Td> <Td> 14.06 </Td> <Td> 1.8 </Td> <Td> 5.14 </Td> <Td> 5.0 </Td> <Td> 19.20 </Td> </Tr> <Tr> <Td> </Td> <Td> "The Relaxation Integration" </Td> <Td> October 9, 2017 </Td> <Td> 2.9 / 11 </Td> <Td> 13.13 </Td> <Td> 1.6 </Td> <Td> 4.77 </Td> <Td> 4.5 </Td> <Td> 17.90 </Td> </Tr> <Tr> <Td> </Td> <Td> "The Explosion Implosion" </Td> <Td> October 16, 2017 </Td> <Td> 2.8 / 11 </Td> <Td> 13.07 </Td> <Td> 1.6 </Td> <Td> 4.64 </Td> <Td> 4.4 </Td> <Td> 17.71 </Td> </Tr> <Tr> <Td> 5 </Td> <Td> "The Collaboration Contamination" </Td> <Td> October 23, 2017 </Td> <Td> 2.8 / 10 </Td> <Td> 13.20 </Td> <Td> 1.6 </Td> <Td> 4.76 </Td> <Td> 4.4 </Td> <Td> 17.96 </Td> </Tr> <Tr> <Td> 6 </Td> <Td> "The Proton Regeneration" </Td> <Td> November 2, 2017 </Td> <Td> 2.7 / 11 </Td> <Td> 14.14 </Td> <Td> 1.8 </Td> <Td> 5.14 </Td> <Td> 4.5 </Td> <Td> 19.28 </Td> </Tr> <Tr> <Td> 7 </Td> <Td> "The Geology Methodology" </Td> <Td> November 9, 2017 </Td> <Td> 2.8 / 11 </Td> <Td> 13.80 </Td> <Td> 1.6 </Td> <Td> 4.76 </Td> <Td> 4.4 </Td> <Td> 18.56 </Td> </Tr> <Tr> <Td> 8 </Td> <Td> "The Tesla Recoil" </Td> <Td> November 16, 2017 </Td> <Td> 2.6 / 11 </Td> <Td> 13.44 </Td> <Td> 1.7 </Td> <Td> 4.84 </Td> <Td> 4.3 </Td> <Td> 18.28 </Td> </Tr> <Tr> <Td> 9 </Td> <Td> "The Bitcoin Entanglement" </Td> <Td> November 30, 2017 </Td> <Td> 2.5 / 10 </Td> <Td> 13.84 </Td> <Td> 1.7 </Td> <Td> 4.70 </Td> <Td> 4.2 </Td> <Td> 18.54 </Td> </Tr> <Tr> <Td> 10 </Td> <Td> "The Confidence Erosion" </Td> <Td> December 7, 2017 </Td> <Td> 2.8 / 10 </Td> <Td> 14.41 </Td> <Td> TBD </Td> <Td> TBD </Td> <Td> TBD </Td> <Td> TBD </Td> </Tr> </Table> <Tr> <Th> No . </Th> <Th> Title </Th> <Th> Air date </Th> <Th> Rating / share (18--49) </Th> <Th> Viewers (millions) </Th> <Th> DVR (18--49) </Th> <Th> DVR viewers (millions) </Th> <Th> Total (18--49) </Th> <Th> Total viewers (millions) </Th> </Tr>

The big bang theory season 4 ep 9