A BCD to Excess-3 code converter can be implemented using 3-8 decoders and NAND gates. The logic table for the converter outlines the input BCD values and their corresponding Excess-3 outputs. A 3-8 decoder takes a 3-bit binary input and activates one of its eight outputs, which is essential for mapping BCD inputs to Excess-3 outputs. The discussion emphasizes the need for participants to share their initial work on the problem to facilitate better understanding. Overall, the focus is on the practical application of digital logic components to achieve the conversion.