The CRTV-themed oscilloscope is designed to measure external analog waveforms and display them in real time for the user. The system is built inside a custom 3D-printed “fat TV” enclosure, giving the oscilloscope a nostalgic retro look while still keeping the electronics accessible and practical. The system uses a Teensy 4.1 microcontroller, a TLV9062 op-amp analog front end, BNC probe inputs, a 10× oscilloscope probe interface, and a 5-inch TFT display with an RA8875 driver. The analog front end supports an input voltage range of ±16.5 V, which is attenuated by the 10× probe and 1 MΩ input path to approximately ±1.65 V. A 1.65 V bias shifts the waveform into the Teensy ADC’s safe 0 V to 3.3 V range so the microcontroller can sample and process the signal. The system also supports two input channels, adjustable voltage scaling, adjustable time scaling, trigger control, and waveform display on the large screen. The biggest accomplishment was going from barely knowing how to use an oscilloscope to actually building one. At the start, our team had to learn major skills like KiCad PCB design, 3D printing, analog signal processing, display control, and hardware integration. By the end, we had a standalone oscilloscope system with a custom PCB, analog front end, user interface, display, and enclosure. Future improvements would include adding DC coupling, adding more test pads, improving PCB routing practices, and using a smaller, cheaper microcontroller solution that only includes the pins and features needed for the oscilloscope. This would reduce the PCB footprint and lower the OSH Park ordering cost.