Operating Expenses
Cost of Revenues: Cost of revenues consists primarily of programming and production costs, programming amortization, participation and residual costs, streaming delivery costs and distribution fees. Cost of revenues for the three months ended June 30, 2021, were $14.8 million, an increase of $2.2 million, or 18%, compared to $12.6 million for the comparable period in 2020. Cost of revenues for the six months ended June 30, 2021, were $26.6 million, an increase of $3.1 million, or 13%, compared to $23.5 million for the comparable period in 2020. These increases were due to the inclusion of Pantaya, primarily content and streaming delivery costs and distribution expenses. Additionally, programming and production costs increased due to the postponement or cancelation of certain programming and sporting events in the prior year periods due to the pandemic.
Selling, General and Administrative: Selling, general and administrative expenses consist principally of marketing and research, stock-based compensation, employee costs, occupancy costs and other general administrative costs. Selling, general, and administrative expenses for the three months ended June 30, 2021, were $24.9 million, an increase of $14.7 million compared to $10.2 million for the comparable period in 2020. Selling, general, and administrative expenses for the six months ended June 30, 2021, were $36.3 million, an increase of $14.9 million, or 69%, compared to $21.4 million for the comparable period in 2020. These increases were due to the inclusion of Pantaya, primarily marketing and personnel expenses, as well as higher advertising sales commissions due to higher advertising revenue, and higher stock-based compensation. The increases were also due to cost reductions implemented in the prior year periods in response to the pandemic that we did not have in the current year periods including voluntary salary reductions and employee retention credits.
Depreciation and Amortization: Depreciation and amortization expense consists of depreciation of fixed assets and amortization of intangibles. Depreciation and amortization for the three months ended June 30, 2021, was $4.3 million, an increase of $1.5 million, or 55%, compared to $2.8 million for the comparable period in 2020. Depreciation and amortization for the six months ended June 30, 2021, was $7.0 million, an increase of $1.1 million, or 18%, compared to $5.9 million for the comparable period in 2020. These increases were due to the amortization of intangible assets recognized as part of the Pantaya Acquisition, offset in part by the amortization of certain intangible assets that were fully amortized in during the prior year.
Other Expenses: Other expenses include legal, financial advisory and other fees incurred in connection with acquisitions and corporate finance activities, including debt and equity financings. Other expenses for the three months ended June 30, 2021, were $1.4 million, an increase of $1.4 million, compared to $0.0 million in the comparable period in 2020, due to expenses incurred in connection with the Pantaya Acquisition. Other expenses for the six months ended June 30, 2021, were $8.1 million, an increase of $5.1 million, compared to $3.0 million in the comparable period in 2020, due to expenses incurred in connection with the Pantaya Acquisition and the incremental borrowing on our Third Amended Term Loan Facility.
(Gain) Loss from FCC repack and other: (Gain) loss from FCC spectrum repack and other primarily reflects reimbursements we have received from the FCC for equipment we have purchased as a result of the FCC mandated spectrum repack, and gain or loss from the sale of assets no longer utilized in the operations of the business. Gain from FCC spectrum repack and other for the three months ended June 30, 2021, was $2.1 million as compared to a loss of $0.2 million in the comparable period of 2020. Gain from FCC spectrum repack and other for the six months ended June 30, 2021, was $2.2 million as compared to a loss of $0.2 million in the comparable period of 2020. These increases were due to reimbursements received from the FCC for equipment purchases required as a result of the FCC mandated spectrum repack and the disposal of assets no longer utilized in the operations of the business during the prior year period.
Other Expenses
Interest Expense and other, net: Interest expense for the three and six months ended June 30, 2021, increased $0.7 million, or 27% and $0.2 million, or 5%, respectively. These increases were due to incremental borrowing on our Third Amended Term Loan Facility and the unfavorable impact from our swaps, offset in part by lower average interest rates due to the decline in LIBOR.